-3(u+4)=7u-9+4(2u+3)

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Solution for -3(u+4)=7u-9+4(2u+3) equation:


Simplifying
-3(u + 4) = 7u + -9 + 4(2u + 3)

Reorder the terms:
-3(4 + u) = 7u + -9 + 4(2u + 3)
(4 * -3 + u * -3) = 7u + -9 + 4(2u + 3)
(-12 + -3u) = 7u + -9 + 4(2u + 3)

Reorder the terms:
-12 + -3u = 7u + -9 + 4(3 + 2u)
-12 + -3u = 7u + -9 + (3 * 4 + 2u * 4)
-12 + -3u = 7u + -9 + (12 + 8u)

Reorder the terms:
-12 + -3u = -9 + 12 + 7u + 8u

Combine like terms: -9 + 12 = 3
-12 + -3u = 3 + 7u + 8u

Combine like terms: 7u + 8u = 15u
-12 + -3u = 3 + 15u

Solving
-12 + -3u = 3 + 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.
-12 + -3u + -15u = 3 + 15u + -15u

Combine like terms: -3u + -15u = -18u
-12 + -18u = 3 + 15u + -15u

Combine like terms: 15u + -15u = 0
-12 + -18u = 3 + 0
-12 + -18u = 3

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

Combine like terms: -12 + 12 = 0
0 + -18u = 3 + 12
-18u = 3 + 12

Combine like terms: 3 + 12 = 15
-18u = 15

Divide each side by '-18'.
u = -0.8333333333

Simplifying
u = -0.8333333333

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