7x-12=8(x-9)

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Solution for 7x-12=8(x-9) equation:


Simplifying
7x + -12 = 8(x + -9)

Reorder the terms:
-12 + 7x = 8(x + -9)

Reorder the terms:
-12 + 7x = 8(-9 + x)
-12 + 7x = (-9 * 8 + x * 8)
-12 + 7x = (-72 + 8x)

Solving
-12 + 7x = -72 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-12 + 7x + -8x = -72 + 8x + -8x

Combine like terms: 7x + -8x = -1x
-12 + -1x = -72 + 8x + -8x

Combine like terms: 8x + -8x = 0
-12 + -1x = -72 + 0
-12 + -1x = -72

Add '12' to each side of the equation.
-12 + 12 + -1x = -72 + 12

Combine like terms: -12 + 12 = 0
0 + -1x = -72 + 12
-1x = -72 + 12

Combine like terms: -72 + 12 = -60
-1x = -60

Divide each side by '-1'.
x = 60

Simplifying
x = 60

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