8=-8u+5(u+7)

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Solution for 8=-8u+5(u+7) equation:


Simplifying
8 = -8u + 5(u + 7)

Reorder the terms:
8 = -8u + 5(7 + u)
8 = -8u + (7 * 5 + u * 5)
8 = -8u + (35 + 5u)

Reorder the terms:
8 = 35 + -8u + 5u

Combine like terms: -8u + 5u = -3u
8 = 35 + -3u

Solving
8 = 35 + -3u

Solving for variable 'u'.

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

Add '3u' to each side of the equation.
8 + 3u = 35 + -3u + 3u

Combine like terms: -3u + 3u = 0
8 + 3u = 35 + 0
8 + 3u = 35

Add '-8' to each side of the equation.
8 + -8 + 3u = 35 + -8

Combine like terms: 8 + -8 = 0
0 + 3u = 35 + -8
3u = 35 + -8

Combine like terms: 35 + -8 = 27
3u = 27

Divide each side by '3'.
u = 9

Simplifying
u = 9

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