3x+12=4x-13

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Solution for 3x+12=4x-13 equation:


Simplifying
3x + 12 = 4x + -13

Reorder the terms:
12 + 3x = 4x + -13

Reorder the terms:
12 + 3x = -13 + 4x

Solving
12 + 3x = -13 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
12 + 3x + -4x = -13 + 4x + -4x

Combine like terms: 3x + -4x = -1x
12 + -1x = -13 + 4x + -4x

Combine like terms: 4x + -4x = 0
12 + -1x = -13 + 0
12 + -1x = -13

Add '-12' to each side of the equation.
12 + -12 + -1x = -13 + -12

Combine like terms: 12 + -12 = 0
0 + -1x = -13 + -12
-1x = -13 + -12

Combine like terms: -13 + -12 = -25
-1x = -25

Divide each side by '-1'.
x = 25

Simplifying
x = 25

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