-28=-8u+3(u+4)

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Solution for -28=-8u+3(u+4) equation:


Simplifying
-28 = -8u + 3(u + 4)

Reorder the terms:
-28 = -8u + 3(4 + u)
-28 = -8u + (4 * 3 + u * 3)
-28 = -8u + (12 + 3u)

Reorder the terms:
-28 = 12 + -8u + 3u

Combine like terms: -8u + 3u = -5u
-28 = 12 + -5u

Solving
-28 = 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.
-28 + 5u = 12 + -5u + 5u

Combine like terms: -5u + 5u = 0
-28 + 5u = 12 + 0
-28 + 5u = 12

Add '28' to each side of the equation.
-28 + 28 + 5u = 12 + 28

Combine like terms: -28 + 28 = 0
0 + 5u = 12 + 28
5u = 12 + 28

Combine like terms: 12 + 28 = 40
5u = 40

Divide each side by '5'.
u = 8

Simplifying
u = 8

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