3(x+5)=x-7

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Solution for 3(x+5)=x-7 equation:


Simplifying
3(x + 5) = x + -7

Reorder the terms:
3(5 + x) = x + -7
(5 * 3 + x * 3) = x + -7
(15 + 3x) = x + -7

Reorder the terms:
15 + 3x = -7 + x

Solving
15 + 3x = -7 + x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1x' to each side of the equation.
15 + 3x + -1x = -7 + x + -1x

Combine like terms: 3x + -1x = 2x
15 + 2x = -7 + x + -1x

Combine like terms: x + -1x = 0
15 + 2x = -7 + 0
15 + 2x = -7

Add '-15' to each side of the equation.
15 + -15 + 2x = -7 + -15

Combine like terms: 15 + -15 = 0
0 + 2x = -7 + -15
2x = -7 + -15

Combine like terms: -7 + -15 = -22
2x = -22

Divide each side by '2'.
x = -11

Simplifying
x = -11

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