3(x-1)-12=5x+15

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Solution for 3(x-1)-12=5x+15 equation:


Simplifying
3(x + -1) + -12 = 5x + 15

Reorder the terms:
3(-1 + x) + -12 = 5x + 15
(-1 * 3 + x * 3) + -12 = 5x + 15
(-3 + 3x) + -12 = 5x + 15

Reorder the terms:
-3 + -12 + 3x = 5x + 15

Combine like terms: -3 + -12 = -15
-15 + 3x = 5x + 15

Reorder the terms:
-15 + 3x = 15 + 5x

Solving
-15 + 3x = 15 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
-15 + 3x + -5x = 15 + 5x + -5x

Combine like terms: 3x + -5x = -2x
-15 + -2x = 15 + 5x + -5x

Combine like terms: 5x + -5x = 0
-15 + -2x = 15 + 0
-15 + -2x = 15

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

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

Combine like terms: 15 + 15 = 30
-2x = 30

Divide each side by '-2'.
x = -15

Simplifying
x = -15

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