5(u+7)=-2u+21

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Solution for 5(u+7)=-2u+21 equation:


Simplifying
5(u + 7) = -2u + 21

Reorder the terms:
5(7 + u) = -2u + 21
(7 * 5 + u * 5) = -2u + 21
(35 + 5u) = -2u + 21

Reorder the terms:
35 + 5u = 21 + -2u

Solving
35 + 5u = 21 + -2u

Solving for variable 'u'.

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

Add '2u' to each side of the equation.
35 + 5u + 2u = 21 + -2u + 2u

Combine like terms: 5u + 2u = 7u
35 + 7u = 21 + -2u + 2u

Combine like terms: -2u + 2u = 0
35 + 7u = 21 + 0
35 + 7u = 21

Add '-35' to each side of the equation.
35 + -35 + 7u = 21 + -35

Combine like terms: 35 + -35 = 0
0 + 7u = 21 + -35
7u = 21 + -35

Combine like terms: 21 + -35 = -14
7u = -14

Divide each side by '7'.
u = -2

Simplifying
u = -2

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