3-8=-5u-2u

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Solution for 3-8=-5u-2u equation:


Simplifying
3 + -8 = -5u + -2u

Combine like terms: 3 + -8 = -5
-5 = -5u + -2u

Combine like terms: -5u + -2u = -7u
-5 = -7u

Solving
-5 = -7u

Solving for variable 'u'.

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

Add '7u' to each side of the equation.
-5 + 7u = -7u + 7u

Combine like terms: -7u + 7u = 0
-5 + 7u = 0

Add '5' to each side of the equation.
-5 + 5 + 7u = 0 + 5

Combine like terms: -5 + 5 = 0
0 + 7u = 0 + 5
7u = 0 + 5

Combine like terms: 0 + 5 = 5
7u = 5

Divide each side by '7'.
u = 0.7142857143

Simplifying
u = 0.7142857143

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