x+x+81=x+144

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Solution for x+x+81=x+144 equation:


Simplifying
x + x + 81 = x + 144

Reorder the terms:
81 + x + x = x + 144

Combine like terms: x + x = 2x
81 + 2x = x + 144

Reorder the terms:
81 + 2x = 144 + x

Solving
81 + 2x = 144 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
81 + 2x + -1x = 144 + x + -1x

Combine like terms: 2x + -1x = 1x
81 + 1x = 144 + x + -1x

Combine like terms: x + -1x = 0
81 + 1x = 144 + 0
81 + 1x = 144

Add '-81' to each side of the equation.
81 + -81 + 1x = 144 + -81

Combine like terms: 81 + -81 = 0
0 + 1x = 144 + -81
1x = 144 + -81

Combine like terms: 144 + -81 = 63
1x = 63

Divide each side by '1'.
x = 63

Simplifying
x = 63

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