-4u-2(-u-15)=-8(2u-9)

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Solution for -4u-2(-u-15)=-8(2u-9) equation:


Simplifying
-4u + -2(-1u + -15) = -8(2u + -9)

Reorder the terms:
-4u + -2(-15 + -1u) = -8(2u + -9)
-4u + (-15 * -2 + -1u * -2) = -8(2u + -9)
-4u + (30 + 2u) = -8(2u + -9)

Reorder the terms:
30 + -4u + 2u = -8(2u + -9)

Combine like terms: -4u + 2u = -2u
30 + -2u = -8(2u + -9)

Reorder the terms:
30 + -2u = -8(-9 + 2u)
30 + -2u = (-9 * -8 + 2u * -8)
30 + -2u = (72 + -16u)

Solving
30 + -2u = 72 + -16u

Solving for variable 'u'.

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

Add '16u' to each side of the equation.
30 + -2u + 16u = 72 + -16u + 16u

Combine like terms: -2u + 16u = 14u
30 + 14u = 72 + -16u + 16u

Combine like terms: -16u + 16u = 0
30 + 14u = 72 + 0
30 + 14u = 72

Add '-30' to each side of the equation.
30 + -30 + 14u = 72 + -30

Combine like terms: 30 + -30 = 0
0 + 14u = 72 + -30
14u = 72 + -30

Combine like terms: 72 + -30 = 42
14u = 42

Divide each side by '14'.
u = 3

Simplifying
u = 3

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