6x-7=128-9x

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Solution for 6x-7=128-9x equation:


Simplifying
6x + -7 = 128 + -9x

Reorder the terms:
-7 + 6x = 128 + -9x

Solving
-7 + 6x = 128 + -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.
-7 + 6x + 9x = 128 + -9x + 9x

Combine like terms: 6x + 9x = 15x
-7 + 15x = 128 + -9x + 9x

Combine like terms: -9x + 9x = 0
-7 + 15x = 128 + 0
-7 + 15x = 128

Add '7' to each side of the equation.
-7 + 7 + 15x = 128 + 7

Combine like terms: -7 + 7 = 0
0 + 15x = 128 + 7
15x = 128 + 7

Combine like terms: 128 + 7 = 135
15x = 135

Divide each side by '15'.
x = 9

Simplifying
x = 9

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