Solve for x: 3x + 2 = 7x - 6

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John Error asked Apr 26, 2023

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40 votes

Solve for x:
3x + 2 = 7x - 6

Mathematics
middle-school

John Error asked Apr 26, 2023

by John Error

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14 votes

Answer: D.2

Work:
8=4x
x= 2

Eregrith answered Apr 29, 2023

by Eregrith

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27 votes

Answer:

$\sf D.\;\;x=2$

Explanation:

$\sf 3x + 2 = 7x - 6$

Subtract 2 from both sides:-

$\sf 3x+2-2=7x-6-2$

Simplify:-

$\sf 3x=7x-8$

Subtract 7x from both sides:-

$\sf 3x-7x=7x-8-7x$

Simplify:-

$\sf -4x=-8$

Divide both sides by -4:-

$\sf (-4x)/(-4)=(-8)/(-4)$

Simplify:-

$\sf x=2$

Yuliani Noriega answered May 1, 2023

by Yuliani Noriega

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