7x-18=4x-31

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Solution for 7x-18=4x-31 equation:


Simplifying
7x + -18 = 4x + -31

Reorder the terms:
-18 + 7x = 4x + -31

Reorder the terms:
-18 + 7x = -31 + 4x

Solving
-18 + 7x = -31 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-18 + 7x + -4x = -31 + 4x + -4x

Combine like terms: 7x + -4x = 3x
-18 + 3x = -31 + 4x + -4x

Combine like terms: 4x + -4x = 0
-18 + 3x = -31 + 0
-18 + 3x = -31

Add '18' to each side of the equation.
-18 + 18 + 3x = -31 + 18

Combine like terms: -18 + 18 = 0
0 + 3x = -31 + 18
3x = -31 + 18

Combine like terms: -31 + 18 = -13
3x = -13

Divide each side by '3'.
x = -4.333333333

Simplifying
x = -4.333333333

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