6x+12=123-9x

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Solution for 6x+12=123-9x equation:


Simplifying
6x + 12 = 123 + -9x

Reorder the terms:
12 + 6x = 123 + -9x

Solving
12 + 6x = 123 + -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.
12 + 6x + 9x = 123 + -9x + 9x

Combine like terms: 6x + 9x = 15x
12 + 15x = 123 + -9x + 9x

Combine like terms: -9x + 9x = 0
12 + 15x = 123 + 0
12 + 15x = 123

Add '-12' to each side of the equation.
12 + -12 + 15x = 123 + -12

Combine like terms: 12 + -12 = 0
0 + 15x = 123 + -12
15x = 123 + -12

Combine like terms: 123 + -12 = 111
15x = 111

Divide each side by '15'.
x = 7.4

Simplifying
x = 7.4

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