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If 2x + 4 ( x-3) lt - 2 - x lt 2x -1, th...

If `2x + 4 ( x-3) lt - 2 - x lt 2x -1,` then find the value of x. (a) -1 (b) 1 (c) 2 (d) -2

A

`-1`

B

1

C

2

D

`-2`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the inequality \( 2x + 4(x - 3) < -2 - x < 2x - 1 \), we can break it down into two separate inequalities: 1. \( 2x + 4(x - 3) < -2 - x \) 2. \( -2 - x < 2x - 1 \) ### Step 1: Solve the first inequality Start with the first inequality: \[ 2x + 4(x - 3) < -2 - x \] Distributing the \(4\): \[ 2x + 4x - 12 < -2 - x \] Combine like terms on the left side: \[ 6x - 12 < -2 - x \] Now, add \(x\) to both sides: \[ 6x + x - 12 < -2 \] This simplifies to: \[ 7x - 12 < -2 \] Next, add \(12\) to both sides: \[ 7x < 10 \] Now, divide by \(7\): \[ x < \frac{10}{7} \] ### Step 2: Solve the second inequality Now, let's solve the second inequality: \[ -2 - x < 2x - 1 \] Add \(x\) to both sides: \[ -2 < 2x + x - 1 \] This simplifies to: \[ -2 < 3x - 1 \] Now, add \(1\) to both sides: \[ -1 < 3x \] Dividing by \(3\): \[ -\frac{1}{3} < x \] ### Step 3: Combine the results Now we have two inequalities: 1. \( x < \frac{10}{7} \) 2. \( x > -\frac{1}{3} \) ### Step 4: Determine the range of \(x\) The combined result is: \[ -\frac{1}{3} < x < \frac{10}{7} \] ### Step 5: Check the options Now we need to check which of the given options falls within this range: (a) -1 (not in the range) (b) 1 (in the range) (c) 2 (not in the range) (d) -2 (not in the range) The only value that satisfies the condition is: **Answer: (b) 1**
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MOTHERS-ALGEBRA -MULTIPLE CHOICE QUESTION
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  3. If x+y+z=19, x^2+y^2+z^2=133 and xz=y^2, then the difference between z...

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  4. If x^(4) + x^(-4) = 194 , x gt 0 then the value of ( x - 2) ^(2) i...

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  5. If 16x^2+9y^2 +4z^2= 24(x-y+z)-61, then the value of (xy + 2z) is : ...

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  6. If x + y + z = 19, xy + yz + zx = 114, then the value of sqrt(x^3+y^3+...

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  7. If [8(x+y)^3- 27(x-y)^3] div (5y-x) = Ax^2+Cy^2+Bxy, then the value of...

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  9. If x + y = 1 and xy(xy - 2) = 12, then the value of x^4+y^4 is: यदि ...

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  10. If (27x^3-343y^3) div (3x-7y)=Ax^2+By^2 +7Cyx, then the value of (4A -...

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  13. If (8x^3-27y^3)div (2x-3y)= (Ax^2+Bxy+Cy^2), then the valueof (2A + B ...

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  14. If x = a + (1)/(a) and y = a - (1)/(a) then sqrt(x^(4) + y^(4) - 2x^(2...

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  15. If 2x^(2) + y^(2) + 6x - 2xy + 9 = 0, then the value of (4x^(3) - y^(3...

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  16. If x + y = 12 and xy = 27, x > y, then the value of (x^3-y^3) is: यद...

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  17. If x^2+y^2+z^2=133,xy +yz + zx = 114 and xyz = 216, then the value of ...

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  18. If 3 sqrt3 x^3-2sqrt2 y^3=(sqrt3x- sqrt2y) (Ax^2+Cxy+By^2), then the v...

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  19. If a + (1)/(a) = 3, then (a^(4) + (1)/(a^(4))) is equal to :

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  20. If a + b + c = 2, a^(2) + b^(2) + c^(2) = 26, then the value of a^(3) ...

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