4(x+3)=x-15

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Solution for 4(x+3)=x-15 equation:


Simplifying
4(x + 3) = x + -15

Reorder the terms:
4(3 + x) = x + -15
(3 * 4 + x * 4) = x + -15
(12 + 4x) = x + -15

Reorder the terms:
12 + 4x = -15 + x

Solving
12 + 4x = -15 + 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.
12 + 4x + -1x = -15 + x + -1x

Combine like terms: 4x + -1x = 3x
12 + 3x = -15 + x + -1x

Combine like terms: x + -1x = 0
12 + 3x = -15 + 0
12 + 3x = -15

Add '-12' to each side of the equation.
12 + -12 + 3x = -15 + -12

Combine like terms: 12 + -12 = 0
0 + 3x = -15 + -12
3x = -15 + -12

Combine like terms: -15 + -12 = -27
3x = -27

Divide each side by '3'.
x = -9

Simplifying
x = -9

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