-7x+9=8x-66

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Solution for -7x+9=8x-66 equation:


Simplifying
-7x + 9 = 8x + -66

Reorder the terms:
9 + -7x = 8x + -66

Reorder the terms:
9 + -7x = -66 + 8x

Solving
9 + -7x = -66 + 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.
9 + -7x + -8x = -66 + 8x + -8x

Combine like terms: -7x + -8x = -15x
9 + -15x = -66 + 8x + -8x

Combine like terms: 8x + -8x = 0
9 + -15x = -66 + 0
9 + -15x = -66

Add '-9' to each side of the equation.
9 + -9 + -15x = -66 + -9

Combine like terms: 9 + -9 = 0
0 + -15x = -66 + -9
-15x = -66 + -9

Combine like terms: -66 + -9 = -75
-15x = -75

Divide each side by '-15'.
x = 5

Simplifying
x = 5

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