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Solve the following equations.Check your...

Solve the following equations.Check your result in each case
`(2x-1)/3-(6x-2)/5=1/3`

A

`x=-9/2`

B

`x=-7/2`

C

`x=-1/2`

D

`x=-5/2`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the equation \(\frac{2x-1}{3} - \frac{6x-2}{5} = \frac{1}{3}\), we will follow these steps: ### Step 1: Find the Least Common Multiple (LCM) The denominators in the equation are 3 and 5. The LCM of 3 and 5 is 15. ### Step 2: Rewrite the Equation Multiply each term by the LCM (15) to eliminate the denominators: \[ 15 \left(\frac{2x-1}{3}\right) - 15 \left(\frac{6x-2}{5}\right) = 15 \left(\frac{1}{3}\right) \] ### Step 3: Simplify Each Term This gives us: \[ 5(2x - 1) - 3(6x - 2) = 5 \] ### Step 4: Distribute the Terms Now distribute the 5 and -3: \[ 10x - 5 - 18x + 6 = 5 \] ### Step 5: Combine Like Terms Combine the \(x\) terms and the constant terms: \[ (10x - 18x) + (-5 + 6) = 5 \] This simplifies to: \[ -8x + 1 = 5 \] ### Step 6: Isolate the Variable Subtract 1 from both sides: \[ -8x = 5 - 1 \] \[ -8x = 4 \] ### Step 7: Solve for \(x\) Divide both sides by -8: \[ x = \frac{4}{-8} = -\frac{1}{2} \] ### Step 8: Check the Result Now, we will substitute \(x = -\frac{1}{2}\) back into the original equation to check our solution: Left-hand side: \[ \frac{2(-\frac{1}{2}) - 1}{3} - \frac{6(-\frac{1}{2}) - 2}{5} \] Calculating each part: \[ = \frac{-1 - 1}{3} - \frac{-3 - 2}{5} \] \[ = \frac{-2}{3} - \frac{-5}{5} \] \[ = \frac{-2}{3} + 1 \] Convert 1 to a fraction with a denominator of 3: \[ = \frac{-2}{3} + \frac{3}{3} = \frac{1}{3} \] Right-hand side: \[ \frac{1}{3} \] Since both sides are equal, our solution is verified. ### Final Answer: \[ x = -\frac{1}{2} \]
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RS AGGARWAL-LINEAR EQUATION IN ONE VARIABLE-EXERCISE 7A
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  3. Solve the following equations.Check your result in each case 2/3x=3/8x...

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  4. Solve the following equations.Check your result in each case (3x-1)/5-...

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  5. Solve the following eqations.Check your result in each case 2x-3=3/10(...

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  6. Solve the following equations. (y-1)/3-(y-2)/4=1

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  7. Solve the following equation.Check your result in each case (x-2)/4+1/...

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  8. Solve the following equations.Check your result in each case (2x-1)/3-...

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  9. Solve the following equations.Check your result in each case (y+7)/3=1...

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  10. Solve the following equation.Check your result in each case 2/7(x-9)+x...

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  11. Solve the following equation.Check your result in each case (2x-3)/5+(...

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  12. Solve the following equation.Check your result in each case 3/4(7x-1)-...

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  13. Solve the following equation.Check your result in each case (x+2)/6-((...

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  14. Solve the following equation.Check your result in each case (9x+7)/2-(...

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  15. Solve the following equation.Check your result in each case 0.5x+x/3=0...

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  16. Solve the following equations.Check your result in each case 0.18(5x-4...

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  17. Solve the following equations.Check your result in each case 2.4(3-x)-...

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  18. Solve the following equations.Check your result in each case 0.5x-(0.8...

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  19. Solve the following equations.Check your result in each case (x+2)/x-2...

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  20. Solve the following equations.Check your result in each case (2x+5)/(3...

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