-8u-45=3(u+7)

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Solution for -8u-45=3(u+7) equation:


Simplifying
-8u + -45 = 3(u + 7)

Reorder the terms:
-45 + -8u = 3(u + 7)

Reorder the terms:
-45 + -8u = 3(7 + u)
-45 + -8u = (7 * 3 + u * 3)
-45 + -8u = (21 + 3u)

Solving
-45 + -8u = 21 + 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.
-45 + -8u + -3u = 21 + 3u + -3u

Combine like terms: -8u + -3u = -11u
-45 + -11u = 21 + 3u + -3u

Combine like terms: 3u + -3u = 0
-45 + -11u = 21 + 0
-45 + -11u = 21

Add '45' to each side of the equation.
-45 + 45 + -11u = 21 + 45

Combine like terms: -45 + 45 = 0
0 + -11u = 21 + 45
-11u = 21 + 45

Combine like terms: 21 + 45 = 66
-11u = 66

Divide each side by '-11'.
u = -6

Simplifying
u = -6

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