-7(u+6)=-3u-18

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Solution for -7(u+6)=-3u-18 equation:


Simplifying
-7(u + 6) = -3u + -18

Reorder the terms:
-7(6 + u) = -3u + -18
(6 * -7 + u * -7) = -3u + -18
(-42 + -7u) = -3u + -18

Reorder the terms:
-42 + -7u = -18 + -3u

Solving
-42 + -7u = -18 + -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.
-42 + -7u + 3u = -18 + -3u + 3u

Combine like terms: -7u + 3u = -4u
-42 + -4u = -18 + -3u + 3u

Combine like terms: -3u + 3u = 0
-42 + -4u = -18 + 0
-42 + -4u = -18

Add '42' to each side of the equation.
-42 + 42 + -4u = -18 + 42

Combine like terms: -42 + 42 = 0
0 + -4u = -18 + 42
-4u = -18 + 42

Combine like terms: -18 + 42 = 24
-4u = 24

Divide each side by '-4'.
u = -6

Simplifying
u = -6

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