-81=3+7x

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Solution for -81=3+7x equation:


Simplifying
-81 = 3 + 7x

Solving
-81 = 3 + 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.
-81 + -7x = 3 + 7x + -7x

Combine like terms: 7x + -7x = 0
-81 + -7x = 3 + 0
-81 + -7x = 3

Add '81' to each side of the equation.
-81 + 81 + -7x = 3 + 81

Combine like terms: -81 + 81 = 0
0 + -7x = 3 + 81
-7x = 3 + 81

Combine like terms: 3 + 81 = 84
-7x = 84

Divide each side by '-7'.
x = -12

Simplifying
x = -12

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