-25=5u+3(u-3)

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Solution for -25=5u+3(u-3) equation:


Simplifying
-25 = 5u + 3(u + -3)

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

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

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

Solving
-25 = -9 + 8u

Solving for variable 'u'.

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

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

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

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

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

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

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

Simplifying
u = -2

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