7x+81=-2x

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Solution for 7x+81=-2x equation:


Simplifying
7x + 81 = -2x

Reorder the terms:
81 + 7x = -2x

Solving
81 + 7x = -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
81 + 7x + 2x = -2x + 2x

Combine like terms: 7x + 2x = 9x
81 + 9x = -2x + 2x

Combine like terms: -2x + 2x = 0
81 + 9x = 0

Add '-81' to each side of the equation.
81 + -81 + 9x = 0 + -81

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

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

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

Simplifying
x = -9

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