7=-8u+3(u+4)

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Solution for 7=-8u+3(u+4) equation:


Simplifying
7 = -8u + 3(u + 4)

Reorder the terms:
7 = -8u + 3(4 + u)
7 = -8u + (4 * 3 + u * 3)
7 = -8u + (12 + 3u)

Reorder the terms:
7 = 12 + -8u + 3u

Combine like terms: -8u + 3u = -5u
7 = 12 + -5u

Solving
7 = 12 + -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.
7 + 5u = 12 + -5u + 5u

Combine like terms: -5u + 5u = 0
7 + 5u = 12 + 0
7 + 5u = 12

Add '-7' to each side of the equation.
7 + -7 + 5u = 12 + -7

Combine like terms: 7 + -7 = 0
0 + 5u = 12 + -7
5u = 12 + -7

Combine like terms: 12 + -7 = 5
5u = 5

Divide each side by '5'.
u = 1

Simplifying
u = 1

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