-3(u+3)=8u-9+2(2u+9)

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Solution for -3(u+3)=8u-9+2(2u+9) equation:


Simplifying
-3(u + 3) = 8u + -9 + 2(2u + 9)

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

Reorder the terms:
-9 + -3u = 8u + -9 + 2(9 + 2u)
-9 + -3u = 8u + -9 + (9 * 2 + 2u * 2)
-9 + -3u = 8u + -9 + (18 + 4u)

Reorder the terms:
-9 + -3u = -9 + 18 + 8u + 4u

Combine like terms: -9 + 18 = 9
-9 + -3u = 9 + 8u + 4u

Combine like terms: 8u + 4u = 12u
-9 + -3u = 9 + 12u

Solving
-9 + -3u = 9 + 12u

Solving for variable 'u'.

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

Add '-12u' to each side of the equation.
-9 + -3u + -12u = 9 + 12u + -12u

Combine like terms: -3u + -12u = -15u
-9 + -15u = 9 + 12u + -12u

Combine like terms: 12u + -12u = 0
-9 + -15u = 9 + 0
-9 + -15u = 9

Add '9' to each side of the equation.
-9 + 9 + -15u = 9 + 9

Combine like terms: -9 + 9 = 0
0 + -15u = 9 + 9
-15u = 9 + 9

Combine like terms: 9 + 9 = 18
-15u = 18

Divide each side by '-15'.
u = -1.2

Simplifying
u = -1.2

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