-1=7+4u

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Solution for -1=7+4u equation:


Simplifying
-1 = 7 + 4u

Solving
-1 = 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.
-1 + -4u = 7 + 4u + -4u

Combine like terms: 4u + -4u = 0
-1 + -4u = 7 + 0
-1 + -4u = 7

Add '1' to each side of the equation.
-1 + 1 + -4u = 7 + 1

Combine like terms: -1 + 1 = 0
0 + -4u = 7 + 1
-4u = 7 + 1

Combine like terms: 7 + 1 = 8
-4u = 8

Divide each side by '-4'.
u = -2

Simplifying
u = -2

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