3(u-5)-8u=20

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Solution for 3(u-5)-8u=20 equation:


Simplifying
3(u + -5) + -8u = 20

Reorder the terms:
3(-5 + u) + -8u = 20
(-5 * 3 + u * 3) + -8u = 20
(-15 + 3u) + -8u = 20

Combine like terms: 3u + -8u = -5u
-15 + -5u = 20

Solving
-15 + -5u = 20

Solving for variable 'u'.

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

Add '15' to each side of the equation.
-15 + 15 + -5u = 20 + 15

Combine like terms: -15 + 15 = 0
0 + -5u = 20 + 15
-5u = 20 + 15

Combine like terms: 20 + 15 = 35
-5u = 35

Divide each side by '-5'.
u = -7

Simplifying
u = -7

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