3(20+x)-81=81

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Solution for 3(20+x)-81=81 equation:


Simplifying
3(20 + x) + -81 = 81
(20 * 3 + x * 3) + -81 = 81
(60 + 3x) + -81 = 81

Reorder the terms:
60 + -81 + 3x = 81

Combine like terms: 60 + -81 = -21
-21 + 3x = 81

Solving
-21 + 3x = 81

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 3x = 81 + 21

Combine like terms: -21 + 21 = 0
0 + 3x = 81 + 21
3x = 81 + 21

Combine like terms: 81 + 21 = 102
3x = 102

Divide each side by '3'.
x = 34

Simplifying
x = 34

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