-3(u+5)=9u-9+2(3u+4)

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Solution for -3(u+5)=9u-9+2(3u+4) equation:


Simplifying
-3(u + 5) = 9u + -9 + 2(3u + 4)

Reorder the terms:
-3(5 + u) = 9u + -9 + 2(3u + 4)
(5 * -3 + u * -3) = 9u + -9 + 2(3u + 4)
(-15 + -3u) = 9u + -9 + 2(3u + 4)

Reorder the terms:
-15 + -3u = 9u + -9 + 2(4 + 3u)
-15 + -3u = 9u + -9 + (4 * 2 + 3u * 2)
-15 + -3u = 9u + -9 + (8 + 6u)

Reorder the terms:
-15 + -3u = -9 + 8 + 9u + 6u

Combine like terms: -9 + 8 = -1
-15 + -3u = -1 + 9u + 6u

Combine like terms: 9u + 6u = 15u
-15 + -3u = -1 + 15u

Solving
-15 + -3u = -1 + 15u

Solving for variable 'u'.

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

Add '-15u' to each side of the equation.
-15 + -3u + -15u = -1 + 15u + -15u

Combine like terms: -3u + -15u = -18u
-15 + -18u = -1 + 15u + -15u

Combine like terms: 15u + -15u = 0
-15 + -18u = -1 + 0
-15 + -18u = -1

Add '15' to each side of the equation.
-15 + 15 + -18u = -1 + 15

Combine like terms: -15 + 15 = 0
0 + -18u = -1 + 15
-18u = -1 + 15

Combine like terms: -1 + 15 = 14
-18u = 14

Divide each side by '-18'.
u = -0.7777777778

Simplifying
u = -0.7777777778

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