39=7(u+3)+8u

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Solution for 39=7(u+3)+8u equation:


Simplifying
39 = 7(u + 3) + 8u

Reorder the terms:
39 = 7(3 + u) + 8u
39 = (3 * 7 + u * 7) + 8u
39 = (21 + 7u) + 8u

Combine like terms: 7u + 8u = 15u
39 = 21 + 15u

Solving
39 = 21 + 15u

Solving for variable 'u'.

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

Add '-15u' to each side of the equation.
39 + -15u = 21 + 15u + -15u

Combine like terms: 15u + -15u = 0
39 + -15u = 21 + 0
39 + -15u = 21

Add '-39' to each side of the equation.
39 + -39 + -15u = 21 + -39

Combine like terms: 39 + -39 = 0
0 + -15u = 21 + -39
-15u = 21 + -39

Combine like terms: 21 + -39 = -18
-15u = -18

Divide each side by '-15'.
u = 1.2

Simplifying
u = 1.2

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