Question

Solve for X 4(x + 3) = 2(x - 1)

Answer 1

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$\sf{4(x + 3) = 2(x - 1)}$

$\sf{4x + 12 = 2(x - 1)}$

$\sf{4x + 12 = 2x - 2}$

Subtract 12 from both sides

$\sf{4x + 12 = 2x - 2}$

$\sf{4x + 12-12 = 2x - 2-12}$

Simplify

$\sf{4x = 2x - 14}$

Subtract 2x from both sides

$\sf{4x = 2x - 14}$

$\sf{4x-2x = 2x-14-2x}$

Simplify

$\sf{2x = -14}$

Divide both sides by the same factor

$\sf{2x = -14}$

$\sf{\frac{2x}{2}= \frac{ - 14}{2}}$

Simplify

$\sf{x = -7}$

Answer 2

1. Expand
4x+12=2x-2
2. Take one side away from the other
4x-2x =2x
2x+12=-2
-12
2x=-14
/2
X=-7