8-7x=31-4x

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Solution for 8-7x=31-4x equation:


Simplifying
8 + -7x = 31 + -4x

Solving
8 + -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.
8 + -7x + 4x = 31 + -4x + 4x

Combine like terms: -7x + 4x = -3x
8 + -3x = 31 + -4x + 4x

Combine like terms: -4x + 4x = 0
8 + -3x = 31 + 0
8 + -3x = 31

Add '-8' to each side of the equation.
8 + -8 + -3x = 31 + -8

Combine like terms: 8 + -8 = 0
0 + -3x = 31 + -8
-3x = 31 + -8

Combine like terms: 31 + -8 = 23
-3x = 23

Divide each side by '-3'.
x = -7.666666667

Simplifying
x = -7.666666667

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