12=7-9x

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Solution for 12=7-9x equation:


Simplifying
12 = 7 + -9x

Solving
12 = 7 + -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 + 9x = 7 + -9x + 9x

Combine like terms: -9x + 9x = 0
12 + 9x = 7 + 0
12 + 9x = 7

Add '-12' to each side of the equation.
12 + -12 + 9x = 7 + -12

Combine like terms: 12 + -12 = 0
0 + 9x = 7 + -12
9x = 7 + -12

Combine like terms: 7 + -12 = -5
9x = -5

Divide each side by '9'.
x = -0.5555555556

Simplifying
x = -0.5555555556

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