-15=-7+2u

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Solution for -15=-7+2u equation:


Simplifying
-15 = -7 + 2u

Solving
-15 = -7 + 2u

Solving for variable 'u'.

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

Add '-2u' to each side of the equation.
-15 + -2u = -7 + 2u + -2u

Combine like terms: 2u + -2u = 0
-15 + -2u = -7 + 0
-15 + -2u = -7

Add '15' to each side of the equation.
-15 + 15 + -2u = -7 + 15

Combine like terms: -15 + 15 = 0
0 + -2u = -7 + 15
-2u = -7 + 15

Combine like terms: -7 + 15 = 8
-2u = 8

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

Simplifying
u = -4

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