-4u+20=-8(u+2)

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Solution for -4u+20=-8(u+2) equation:


Simplifying
-4u + 20 = -8(u + 2)

Reorder the terms:
20 + -4u = -8(u + 2)

Reorder the terms:
20 + -4u = -8(2 + u)
20 + -4u = (2 * -8 + u * -8)
20 + -4u = (-16 + -8u)

Solving
20 + -4u = -16 + -8u

Solving for variable 'u'.

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

Add '8u' to each side of the equation.
20 + -4u + 8u = -16 + -8u + 8u

Combine like terms: -4u + 8u = 4u
20 + 4u = -16 + -8u + 8u

Combine like terms: -8u + 8u = 0
20 + 4u = -16 + 0
20 + 4u = -16

Add '-20' to each side of the equation.
20 + -20 + 4u = -16 + -20

Combine like terms: 20 + -20 = 0
0 + 4u = -16 + -20
4u = -16 + -20

Combine like terms: -16 + -20 = -36
4u = -36

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

Simplifying
u = -9

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