-5x-9=7x-81

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Solution for -5x-9=7x-81 equation:


Simplifying
-5x + -9 = 7x + -81

Reorder the terms:
-9 + -5x = 7x + -81

Reorder the terms:
-9 + -5x = -81 + 7x

Solving
-9 + -5x = -81 + 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 + -5x + -7x = -81 + 7x + -7x

Combine like terms: -5x + -7x = -12x
-9 + -12x = -81 + 7x + -7x

Combine like terms: 7x + -7x = 0
-9 + -12x = -81 + 0
-9 + -12x = -81

Add '9' to each side of the equation.
-9 + 9 + -12x = -81 + 9

Combine like terms: -9 + 9 = 0
0 + -12x = -81 + 9
-12x = -81 + 9

Combine like terms: -81 + 9 = -72
-12x = -72

Divide each side by '-12'.
x = 6

Simplifying
x = 6

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