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

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


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

Reorder the terms:
-28 = -4u + 8(-8 + u)
-28 = -4u + (-8 * 8 + u * 8)
-28 = -4u + (-64 + 8u)

Reorder the terms:
-28 = -64 + -4u + 8u

Combine like terms: -4u + 8u = 4u
-28 = -64 + 4u

Solving
-28 = -64 + 4u

Solving for variable 'u'.

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

Add '-4u' to each side of the equation.
-28 + -4u = -64 + 4u + -4u

Combine like terms: 4u + -4u = 0
-28 + -4u = -64 + 0
-28 + -4u = -64

Add '28' to each side of the equation.
-28 + 28 + -4u = -64 + 28

Combine like terms: -28 + 28 = 0
0 + -4u = -64 + 28
-4u = -64 + 28

Combine like terms: -64 + 28 = -36
-4u = -36

Divide each side by '-4'.
u = 9

Simplifying
u = 9

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