12x+15=13x+4

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Solution for 12x+15=13x+4 equation:


Simplifying
12x + 15 = 13x + 4

Reorder the terms:
15 + 12x = 13x + 4

Reorder the terms:
15 + 12x = 4 + 13x

Solving
15 + 12x = 4 + 13x

Solving for variable 'x'.

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

Add '-13x' to each side of the equation.
15 + 12x + -13x = 4 + 13x + -13x

Combine like terms: 12x + -13x = -1x
15 + -1x = 4 + 13x + -13x

Combine like terms: 13x + -13x = 0
15 + -1x = 4 + 0
15 + -1x = 4

Add '-15' to each side of the equation.
15 + -15 + -1x = 4 + -15

Combine like terms: 15 + -15 = 0
0 + -1x = 4 + -15
-1x = 4 + -15

Combine like terms: 4 + -15 = -11
-1x = -11

Divide each side by '-1'.
x = 11

Simplifying
x = 11

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