-20=-4u

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Solution for -20=-4u equation:


Simplifying
-20 = -4u

Solving
-20 = -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.
-20 + 4u = -4u + 4u

Combine like terms: -4u + 4u = 0
-20 + 4u = 0

Add '20' to each side of the equation.
-20 + 20 + 4u = 0 + 20

Combine like terms: -20 + 20 = 0
0 + 4u = 0 + 20
4u = 0 + 20

Combine like terms: 0 + 20 = 20
4u = 20

Divide each side by '4'.
u = 5

Simplifying
u = 5

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