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Solve for x and y : 4x = 17 - (x - y)/...

Solve for x and y :
4x = 17 - `(x - y)/(8)`
`2y + x = 2 + (5y + 2)/(3)`

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To solve the simultaneous equations given by: 1. \( 4x = 17 - \frac{x - y}{8} \) 2. \( 2y + x = 2 + \frac{5y + 2}{3} \) we will follow these steps: ### Step 1: Simplify the first equation Starting with the first equation: \[ 4x = 17 - \frac{x - y}{8} \] Multiply through by 8 to eliminate the fraction: \[ 32x = 136 - (x - y) \] Distributing the negative sign: \[ 32x = 136 - x + y \] Rearranging gives: \[ 32x + x - y = 136 \] Combining like terms: \[ 33x - y = 136 \] This can be labeled as Equation (1): \[ 33x - y = 136 \quad \text{(Equation 1)} \] ### Step 2: Simplify the second equation Now, let's simplify the second equation: \[ 2y + x = 2 + \frac{5y + 2}{3} \] Multiply through by 3 to eliminate the fraction: \[ 3(2y + x) = 3 \cdot 2 + (5y + 2) \] Expanding both sides: \[ 6y + 3x = 6 + 5y + 2 \] Combining like terms on the right side: \[ 6y + 3x = 8 + 5y \] Rearranging gives: \[ 6y - 5y + 3x = 8 \] This simplifies to: \[ 3x + y = 8 \] This can be labeled as Equation (2): \[ 3x + y = 8 \quad \text{(Equation 2)} \] ### Step 3: Add the two equations Now we have: 1. \( 33x - y = 136 \) 2. \( 3x + y = 8 \) Adding these two equations: \[ (33x - y) + (3x + y) = 136 + 8 \] The \( -y \) and \( +y \) cancel out: \[ 36x = 144 \] Dividing both sides by 36: \[ x = \frac{144}{36} = 4 \] ### Step 4: Substitute \( x \) back into one of the equations Now substitute \( x = 4 \) back into Equation (2): \[ 3(4) + y = 8 \] This simplifies to: \[ 12 + y = 8 \] Solving for \( y \): \[ y = 8 - 12 = -4 \] ### Final Answer Thus, the solution is: \[ x = 4, \quad y = -4 \]
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ICSE-SIMULTANEOUS EQUATIONS-EXERCISE 6 (B)
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  7. For solving each pair of equations, in this exercise, use the method o...

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  8. For solving each pair of equations, in this exercise, use the method o...

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  9. For solving each pair of equations, in this exercise, use the method o...

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  10. For solving each pair of equations, in this exercise, use the method o...

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  11. If 2x + y = 23 and 4x - y = 19, find the values of x - 3y and 5y - 2x.

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  12. If 10y=7x-4 and 12x+18y=1. Find the value of 4x+6y and 8y-x.

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  13. Solve for x and y : (y+7)/(5)=(2y-x)/(4)+3x-5 (7-5x)/(2)+(3-4y)/(6...

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  14. Solve for x and y : 4x = 17 - (x - y)/(8) 2y + x = 2 + (5y + 2)/(3...

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  15. Find the value of m, if x = 2, y = 1 is a solution of the equation 2x ...

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  16. 10% of x + 20% of y = 24 3x - y = 20

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  17. The value of expression mx-ny is 3 when x=5 and y=6. And its value is ...

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  18. Solve 11(x - 5) + 10(y - 2) + 54 = 0 7(2x - 1) + 9 (3y - 1) = 25

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  19. Solve : (7 + x)/(5) - (2x - y)/(4) = 3y - 5 (5y - 7)/(2) + (4x - 3...

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  20. Solve for x and y : 4x = 17 - (x - y)/(8) 2y + x = 2 + (5y + 2)/(3...

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