-31=-7+4u

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Solution for -31=-7+4u equation:


Simplifying
-31 = -7 + 4u

Solving
-31 = -7 + 4u

Solving for variable 'u'.

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

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

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

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

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

Combine like terms: -7 + 31 = 24
-4u = 24

Divide each side by '-4'.
u = -6

Simplifying
u = -6

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