9+3(3u-7)=-3(3u-1)+8u

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Solution for 9+3(3u-7)=-3(3u-1)+8u equation:


Simplifying
9 + 3(3u + -7) = -3(3u + -1) + 8u

Reorder the terms:
9 + 3(-7 + 3u) = -3(3u + -1) + 8u
9 + (-7 * 3 + 3u * 3) = -3(3u + -1) + 8u
9 + (-21 + 9u) = -3(3u + -1) + 8u

Combine like terms: 9 + -21 = -12
-12 + 9u = -3(3u + -1) + 8u

Reorder the terms:
-12 + 9u = -3(-1 + 3u) + 8u
-12 + 9u = (-1 * -3 + 3u * -3) + 8u
-12 + 9u = (3 + -9u) + 8u

Combine like terms: -9u + 8u = -1u
-12 + 9u = 3 + -1u

Solving
-12 + 9u = 3 + -1u

Solving for variable 'u'.

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

Add 'u' to each side of the equation.
-12 + 9u + u = 3 + -1u + u

Combine like terms: 9u + u = 10u
-12 + 10u = 3 + -1u + u

Combine like terms: -1u + u = 0
-12 + 10u = 3 + 0
-12 + 10u = 3

Add '12' to each side of the equation.
-12 + 12 + 10u = 3 + 12

Combine like terms: -12 + 12 = 0
0 + 10u = 3 + 12
10u = 3 + 12

Combine like terms: 3 + 12 = 15
10u = 15

Divide each side by '10'.
u = 1.5

Simplifying
u = 1.5

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