-7u+5(u+3)=7

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Solution for -7u+5(u+3)=7 equation:


Simplifying
-7u + 5(u + 3) = 7

Reorder the terms:
-7u + 5(3 + u) = 7
-7u + (3 * 5 + u * 5) = 7
-7u + (15 + 5u) = 7

Reorder the terms:
15 + -7u + 5u = 7

Combine like terms: -7u + 5u = -2u
15 + -2u = 7

Solving
15 + -2u = 7

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 + -2u = 7 + -15

Combine like terms: 15 + -15 = 0
0 + -2u = 7 + -15
-2u = 7 + -15

Combine like terms: 7 + -15 = -8
-2u = -8

Divide each side by '-2'.
u = 4

Simplifying
u = 4

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