4x+8+9x-12=120

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Solution for 4x+8+9x-12=120 equation:


Simplifying
4x + 8 + 9x + -12 = 120

Reorder the terms:
8 + -12 + 4x + 9x = 120

Combine like terms: 8 + -12 = -4
-4 + 4x + 9x = 120

Combine like terms: 4x + 9x = 13x
-4 + 13x = 120

Solving
-4 + 13x = 120

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 13x = 120 + 4

Combine like terms: -4 + 4 = 0
0 + 13x = 120 + 4
13x = 120 + 4

Combine like terms: 120 + 4 = 124
13x = 124

Divide each side by '13'.
x = 9.538461538

Simplifying
x = 9.538461538

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