3u+12=-7u-18

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Solution for 3u+12=-7u-18 equation: 


Simplifying
3u + 12 = -7u + -18

Reorder the terms:
12 + 3u = -7u + -18

Reorder the terms:
12 + 3u = -18 + -7u

Solving
12 + 3u = -18 + -7u

Solving for variable 'u'.

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

Add '7u' to each side of the equation.
12 + 3u + 7u = -18 + -7u + 7u

Combine like terms: 3u + 7u = 10u
12 + 10u = -18 + -7u + 7u

Combine like terms: -7u + 7u = 0
12 + 10u = -18 + 0
12 + 10u = -18

Add '-12' to each side of the equation.
12 + -12 + 10u = -18 + -12

Combine like terms: 12 + -12 = 0
0 + 10u = -18 + -12
10u = -18 + -12

Combine like terms: -18 + -12 = -30
10u = -30

Divide each side by '10'.
u = -3

Simplifying
u = -3

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