6x+9x-57=123

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Solution for 6x+9x-57=123 equation:


Simplifying
6x + 9x + -57 = 123

Reorder the terms:
-57 + 6x + 9x = 123

Combine like terms: 6x + 9x = 15x
-57 + 15x = 123

Solving
-57 + 15x = 123

Solving for variable 'x'.

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

Add '57' to each side of the equation.
-57 + 57 + 15x = 123 + 57

Combine like terms: -57 + 57 = 0
0 + 15x = 123 + 57
15x = 123 + 57

Combine like terms: 123 + 57 = 180
15x = 180

Divide each side by '15'.
x = 12

Simplifying
x = 12

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