7v+4-8v=31

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


Simplifying
7v + 4 + -8v = 31

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

Combine like terms: 7v + -8v = -1v
4 + -1v = 31

Solving
4 + -1v = 31

Solving for variable 'v'.

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

Add '-4' to each side of the equation.
4 + -4 + -1v = 31 + -4

Combine like terms: 4 + -4 = 0
0 + -1v = 31 + -4
-1v = 31 + -4

Combine like terms: 31 + -4 = 27
-1v = 27

Divide each side by '-1'.
v = -27

Simplifying
v = -27

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