-3u+9=5(u+5)

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Solution for -3u+9=5(u+5) equation:


Simplifying
-3u + 9 = 5(u + 5)

Reorder the terms:
9 + -3u = 5(u + 5)

Reorder the terms:
9 + -3u = 5(5 + u)
9 + -3u = (5 * 5 + u * 5)
9 + -3u = (25 + 5u)

Solving
9 + -3u = 25 + 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.
9 + -3u + -5u = 25 + 5u + -5u

Combine like terms: -3u + -5u = -8u
9 + -8u = 25 + 5u + -5u

Combine like terms: 5u + -5u = 0
9 + -8u = 25 + 0
9 + -8u = 25

Add '-9' to each side of the equation.
9 + -9 + -8u = 25 + -9

Combine like terms: 9 + -9 = 0
0 + -8u = 25 + -9
-8u = 25 + -9

Combine like terms: 25 + -9 = 16
-8u = 16

Divide each side by '-8'.
u = -2

Simplifying
u = -2

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