-3(u+7)=-18

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Solution for -3(u+7)=-18 equation:


Simplifying
-3(u + 7) = -18

Reorder the terms:
-3(7 + u) = -18
(7 * -3 + u * -3) = -18
(-21 + -3u) = -18

Solving
-21 + -3u = -18

Solving for variable 'u'.

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

Add '21' to each side of the equation.
-21 + 21 + -3u = -18 + 21

Combine like terms: -21 + 21 = 0
0 + -3u = -18 + 21
-3u = -18 + 21

Combine like terms: -18 + 21 = 3
-3u = 3

Divide each side by '-3'.
u = -1

Simplifying
u = -1

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