12x-13=9x-7

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Solution for 12x-13=9x-7 equation:


Simplifying
12x + -13 = 9x + -7

Reorder the terms:
-13 + 12x = 9x + -7

Reorder the terms:
-13 + 12x = -7 + 9x

Solving
-13 + 12x = -7 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
-13 + 12x + -9x = -7 + 9x + -9x

Combine like terms: 12x + -9x = 3x
-13 + 3x = -7 + 9x + -9x

Combine like terms: 9x + -9x = 0
-13 + 3x = -7 + 0
-13 + 3x = -7

Add '13' to each side of the equation.
-13 + 13 + 3x = -7 + 13

Combine like terms: -13 + 13 = 0
0 + 3x = -7 + 13
3x = -7 + 13

Combine like terms: -7 + 13 = 6
3x = 6

Divide each side by '3'.
x = 2

Simplifying
x = 2

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