8x+31=4x-7

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


Simplifying
8x + 31 = 4x + -7

Reorder the terms:
31 + 8x = 4x + -7

Reorder the terms:
31 + 8x = -7 + 4x

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

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

Combine like terms: 4x + -4x = 0
31 + 4x = -7 + 0
31 + 4x = -7

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

Combine like terms: 31 + -31 = 0
0 + 4x = -7 + -31
4x = -7 + -31

Combine like terms: -7 + -31 = -38
4x = -38

Divide each side by '4'.
x = -9.5

Simplifying
x = -9.5

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