x + 2 = 4x - 7

Algebra Level pending

What value of x x satisfies x + 3 = 4 x 18 x + 3 = 4x - 18 ?


The answer is 7.

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1 solution

Arron Kau Staff
May 13, 2014

Rearranging for x x , we have

x + 3 = 6 x 52 6 x x = 52 + 3 5 x = 55 x = 55 5 x = 11 \begin{aligned} x + 3 &= 6x - 52 \\ 6x - x &= 52 + 3 \\ 5x &= 55 \\ x &= \frac{55}{5} \\ x &= 11 \\ \end{aligned}

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