-3(u+1)=3u-9+2(2u+4)

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Solution for -3(u+1)=3u-9+2(2u+4) equation:


Simplifying
-3(u + 1) = 3u + -9 + 2(2u + 4)

Reorder the terms:
-3(1 + u) = 3u + -9 + 2(2u + 4)
(1 * -3 + u * -3) = 3u + -9 + 2(2u + 4)
(-3 + -3u) = 3u + -9 + 2(2u + 4)

Reorder the terms:
-3 + -3u = 3u + -9 + 2(4 + 2u)
-3 + -3u = 3u + -9 + (4 * 2 + 2u * 2)
-3 + -3u = 3u + -9 + (8 + 4u)

Reorder the terms:
-3 + -3u = -9 + 8 + 3u + 4u

Combine like terms: -9 + 8 = -1
-3 + -3u = -1 + 3u + 4u

Combine like terms: 3u + 4u = 7u
-3 + -3u = -1 + 7u

Solving
-3 + -3u = -1 + 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.
-3 + -3u + -7u = -1 + 7u + -7u

Combine like terms: -3u + -7u = -10u
-3 + -10u = -1 + 7u + -7u

Combine like terms: 7u + -7u = 0
-3 + -10u = -1 + 0
-3 + -10u = -1

Add '3' to each side of the equation.
-3 + 3 + -10u = -1 + 3

Combine like terms: -3 + 3 = 0
0 + -10u = -1 + 3
-10u = -1 + 3

Combine like terms: -1 + 3 = 2
-10u = 2

Divide each side by '-10'.
u = -0.2

Simplifying
u = -0.2

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