11x-40+9x-12=128

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Solution for 11x-40+9x-12=128 equation:


Simplifying
11x + -40 + 9x + -12 = 128

Reorder the terms:
-40 + -12 + 11x + 9x = 128

Combine like terms: -40 + -12 = -52
-52 + 11x + 9x = 128

Combine like terms: 11x + 9x = 20x
-52 + 20x = 128

Solving
-52 + 20x = 128

Solving for variable 'x'.

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

Add '52' to each side of the equation.
-52 + 52 + 20x = 128 + 52

Combine like terms: -52 + 52 = 0
0 + 20x = 128 + 52
20x = 128 + 52

Combine like terms: 128 + 52 = 180
20x = 180

Divide each side by '20'.
x = 9

Simplifying
x = 9

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