3u-9+3(3u+1)=-6(u+3)

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Solution for 3u-9+3(3u+1)=-6(u+3) equation:


Simplifying
3u + -9 + 3(3u + 1) = -6(u + 3)

Reorder the terms:
3u + -9 + 3(1 + 3u) = -6(u + 3)
3u + -9 + (1 * 3 + 3u * 3) = -6(u + 3)
3u + -9 + (3 + 9u) = -6(u + 3)

Reorder the terms:
-9 + 3 + 3u + 9u = -6(u + 3)

Combine like terms: -9 + 3 = -6
-6 + 3u + 9u = -6(u + 3)

Combine like terms: 3u + 9u = 12u
-6 + 12u = -6(u + 3)

Reorder the terms:
-6 + 12u = -6(3 + u)
-6 + 12u = (3 * -6 + u * -6)
-6 + 12u = (-18 + -6u)

Solving
-6 + 12u = -18 + -6u

Solving for variable 'u'.

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

Add '6u' to each side of the equation.
-6 + 12u + 6u = -18 + -6u + 6u

Combine like terms: 12u + 6u = 18u
-6 + 18u = -18 + -6u + 6u

Combine like terms: -6u + 6u = 0
-6 + 18u = -18 + 0
-6 + 18u = -18

Add '6' to each side of the equation.
-6 + 6 + 18u = -18 + 6

Combine like terms: -6 + 6 = 0
0 + 18u = -18 + 6
18u = -18 + 6

Combine like terms: -18 + 6 = -12
18u = -12

Divide each side by '18'.
u = -0.6666666667

Simplifying
u = -0.6666666667

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