4x+18=13x-81

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Solution for 4x+18=13x-81 equation:


Simplifying
4x + 18 = 13x + -81

Reorder the terms:
18 + 4x = 13x + -81

Reorder the terms:
18 + 4x = -81 + 13x

Solving
18 + 4x = -81 + 13x

Solving for variable 'x'.

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

Add '-13x' to each side of the equation.
18 + 4x + -13x = -81 + 13x + -13x

Combine like terms: 4x + -13x = -9x
18 + -9x = -81 + 13x + -13x

Combine like terms: 13x + -13x = 0
18 + -9x = -81 + 0
18 + -9x = -81

Add '-18' to each side of the equation.
18 + -18 + -9x = -81 + -18

Combine like terms: 18 + -18 = 0
0 + -9x = -81 + -18
-9x = -81 + -18

Combine like terms: -81 + -18 = -99
-9x = -99

Divide each side by '-9'.
x = 11

Simplifying
x = 11

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