9=7x-12

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Solution for 9=7x-12 equation: 


Simplifying
9 = 7x + -12

Reorder the terms:
9 = -12 + 7x

Solving
9 = -12 + 7x

Solving for variable 'x'.

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

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

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

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

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

Combine like terms: -12 + -9 = -21
-7x = -21

Divide each side by '-7'.
x = 3

Simplifying
x = 3

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