12x-13=9x+4

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Solution for 12x-13=9x+4 equation:


Simplifying
12x + -13 = 9x + 4

Reorder the terms:
-13 + 12x = 9x + 4

Reorder the terms:
-13 + 12x = 4 + 9x

Solving
-13 + 12x = 4 + 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 = 4 + 9x + -9x

Combine like terms: 12x + -9x = 3x
-13 + 3x = 4 + 9x + -9x

Combine like terms: 9x + -9x = 0
-13 + 3x = 4 + 0
-13 + 3x = 4

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

Combine like terms: -13 + 13 = 0
0 + 3x = 4 + 13
3x = 4 + 13

Combine like terms: 4 + 13 = 17
3x = 17

Divide each side by '3'.
x = 5.666666667

Simplifying
x = 5.666666667

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