13x-9+21=5x+12

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Solution for 13x-9+21=5x+12 equation:


Simplifying
13x + -9 + 21 = 5x + 12

Reorder the terms:
-9 + 21 + 13x = 5x + 12

Combine like terms: -9 + 21 = 12
12 + 13x = 5x + 12

Reorder the terms:
12 + 13x = 12 + 5x

Add '-12' to each side of the equation.
12 + -12 + 13x = 12 + -12 + 5x

Combine like terms: 12 + -12 = 0
0 + 13x = 12 + -12 + 5x
13x = 12 + -12 + 5x

Combine like terms: 12 + -12 = 0
13x = 0 + 5x
13x = 5x

Solving
13x = 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
13x + -5x = 5x + -5x

Combine like terms: 13x + -5x = 8x
8x = 5x + -5x

Combine like terms: 5x + -5x = 0
8x = 0

Divide each side by '8'.
x = 0

Simplifying
x = 0

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