7x+8+-3x=31+5

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Solution for 7x+8+-3x=31+5 equation:


Simplifying
7x + 8 + -3x = 31 + 5

Reorder the terms:
8 + 7x + -3x = 31 + 5

Combine like terms: 7x + -3x = 4x
8 + 4x = 31 + 5

Combine like terms: 31 + 5 = 36
8 + 4x = 36

Solving
8 + 4x = 36

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 4x = 36 + -8

Combine like terms: 8 + -8 = 0
0 + 4x = 36 + -8
4x = 36 + -8

Combine like terms: 36 + -8 = 28
4x = 28

Divide each side by '4'.
x = 7

Simplifying
x = 7

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