31-4x=18+9x

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Solution for 31-4x=18+9x equation:


Simplifying
31 + -4x = 18 + 9x

Solving
31 + -4x = 18 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
31 + -4x + -9x = 18 + 9x + -9x

Combine like terms: -4x + -9x = -13x
31 + -13x = 18 + 9x + -9x

Combine like terms: 9x + -9x = 0
31 + -13x = 18 + 0
31 + -13x = 18

Add '-31' to each side of the equation.
31 + -31 + -13x = 18 + -31

Combine like terms: 31 + -31 = 0
0 + -13x = 18 + -31
-13x = 18 + -31

Combine like terms: 18 + -31 = -13
-13x = -13

Divide each side by '-13'.
x = 1

Simplifying
x = 1

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