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

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


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

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

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

Solving
-5 = 15 + -5u

Solving for variable 'u'.

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

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

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

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

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

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

Divide each side by '5'.
u = 4

Simplifying
u = 4

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