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Which value of x makes the equation 3(x - 6) = 8x - 3(3x + 7) true?

A. x = -34
B. x = -312
C. x = 134
D. x = 394

User Qiming
by
7.5k points

1 Answer

3 votes

Final answer:

The correct value of x for the equation 3(x - 6) = 8x - 3(3x + 7) is -3/4, which does not match any of the given options.

Step-by-step explanation:

To find which value of x makes the equation 3(x - 6) = 8x - 3(3x + 7) true, we need to simplify the equation by expanding the brackets and then collecting like terms. Let's solve step-by-step:

Expand the left side: 3x - 18.

Expand the right side: 8x - 9x - 21.

Combine like terms on the right side: -x - 21.

Set the equation equal: 3x - 18 = -x - 21.

Add x to both sides: 3x + x - 18 = -21.

Combine like terms on the left side: 4x - 18 = -21.

Add 18 to both sides: 4x = -3.

Divide by 4 to isolate x: x = -3/4.

None of the options provided (A, B, C, D) matches our solution.

User MeanStreet
by
7.7k points
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