x+15-8=12+3x

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Solution for x+15-8=12+3x equation:


Simplifying
x + 15 + -8 = 12 + 3x

Reorder the terms:
15 + -8 + x = 12 + 3x

Combine like terms: 15 + -8 = 7
7 + x = 12 + 3x

Solving
7 + x = 12 + 3x

Solving for variable 'x'.

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

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

Combine like terms: x + -3x = -2x
7 + -2x = 12 + 3x + -3x

Combine like terms: 3x + -3x = 0
7 + -2x = 12 + 0
7 + -2x = 12

Add '-7' to each side of the equation.
7 + -7 + -2x = 12 + -7

Combine like terms: 7 + -7 = 0
0 + -2x = 12 + -7
-2x = 12 + -7

Combine like terms: 12 + -7 = 5
-2x = 5

Divide each side by '-2'.
x = -2.5

Simplifying
x = -2.5

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