40=8-5u

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Solution for 40=8-5u equation:


Simplifying
40 = 8 + -5u

Solving
40 = 8 + -5u

Solving for variable 'u'.

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

Add '5u' to each side of the equation.
40 + 5u = 8 + -5u + 5u

Combine like terms: -5u + 5u = 0
40 + 5u = 8 + 0
40 + 5u = 8

Add '-40' to each side of the equation.
40 + -40 + 5u = 8 + -40

Combine like terms: 40 + -40 = 0
0 + 5u = 8 + -40
5u = 8 + -40

Combine like terms: 8 + -40 = -32
5u = -32

Divide each side by '5'.
u = -6.4

Simplifying
u = -6.4

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