20-7(3u+8)+(-8)=

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Solution for 20-7(3u+8)+(-8)= equation: 


Simplifying
20 + -7(3u + 8) + (-8) = 0

Reorder the terms:
20 + -7(8 + 3u) + (-8) = 0
20 + (8 * -7 + 3u * -7) + (-8) = 0
20 + (-56 + -21u) + (-8) = 0
20 + -56 + -21u + -8 = 0

Reorder the terms:
20 + -56 + -8 + -21u = 0

Combine like terms: 20 + -56 = -36
-36 + -8 + -21u = 0

Combine like terms: -36 + -8 = -44
-44 + -21u = 0

Solving
-44 + -21u = 0

Solving for variable 'u'.

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

Add '44' to each side of the equation.
-44 + 44 + -21u = 0 + 44

Combine like terms: -44 + 44 = 0
0 + -21u = 0 + 44
-21u = 0 + 44

Combine like terms: 0 + 44 = 44
-21u = 44

Divide each side by '-21'.
u = -2.095238095

Simplifying
u = -2.095238095

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