-84+7x=81-4x

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Solution for -84+7x=81-4x equation:


Simplifying
-84 + 7x = 81 + -4x

Solving
-84 + 7x = 81 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
-84 + 7x + 4x = 81 + -4x + 4x

Combine like terms: 7x + 4x = 11x
-84 + 11x = 81 + -4x + 4x

Combine like terms: -4x + 4x = 0
-84 + 11x = 81 + 0
-84 + 11x = 81

Add '84' to each side of the equation.
-84 + 84 + 11x = 81 + 84

Combine like terms: -84 + 84 = 0
0 + 11x = 81 + 84
11x = 81 + 84

Combine like terms: 81 + 84 = 165
11x = 165

Divide each side by '11'.
x = 15

Simplifying
x = 15

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