4x+15-x=12

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Solution for 4x+15-x=12 equation:


Simplifying
4x + 15 + -1x = 12

Reorder the terms:
15 + 4x + -1x = 12

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

Solving
15 + 3x = 12

Solving for variable 'x'.

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

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

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

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

Divide each side by '3'.
x = -1

Simplifying
x = -1

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