-15=-3+4u

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Solution for -15=-3+4u equation:


Simplifying
-15 = -3 + 4u

Solving
-15 = -3 + 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.
-15 + -4u = -3 + 4u + -4u

Combine like terms: 4u + -4u = 0
-15 + -4u = -3 + 0
-15 + -4u = -3

Add '15' to each side of the equation.
-15 + 15 + -4u = -3 + 15

Combine like terms: -15 + 15 = 0
0 + -4u = -3 + 15
-4u = -3 + 15

Combine like terms: -3 + 15 = 12
-4u = 12

Divide each side by '-4'.
u = -3

Simplifying
u = -3

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