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

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


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

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

Reorder the terms:
-7 + -5u = 3(3 + u)
-7 + -5u = (3 * 3 + u * 3)
-7 + -5u = (9 + 3u)

Solving
-7 + -5u = 9 + 3u

Solving for variable 'u'.

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

Add '-3u' to each side of the equation.
-7 + -5u + -3u = 9 + 3u + -3u

Combine like terms: -5u + -3u = -8u
-7 + -8u = 9 + 3u + -3u

Combine like terms: 3u + -3u = 0
-7 + -8u = 9 + 0
-7 + -8u = 9

Add '7' to each side of the equation.
-7 + 7 + -8u = 9 + 7

Combine like terms: -7 + 7 = 0
0 + -8u = 9 + 7
-8u = 9 + 7

Combine like terms: 9 + 7 = 16
-8u = 16

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

Simplifying
u = -2

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