9x-81=5x+39

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Solution for 9x-81=5x+39 equation:


Simplifying
9x + -81 = 5x + 39

Reorder the terms:
-81 + 9x = 5x + 39

Reorder the terms:
-81 + 9x = 39 + 5x

Solving
-81 + 9x = 39 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
-81 + 9x + -5x = 39 + 5x + -5x

Combine like terms: 9x + -5x = 4x
-81 + 4x = 39 + 5x + -5x

Combine like terms: 5x + -5x = 0
-81 + 4x = 39 + 0
-81 + 4x = 39

Add '81' to each side of the equation.
-81 + 81 + 4x = 39 + 81

Combine like terms: -81 + 81 = 0
0 + 4x = 39 + 81
4x = 39 + 81

Combine like terms: 39 + 81 = 120
4x = 120

Divide each side by '4'.
x = 30

Simplifying
x = 30

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