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

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


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

Reorder the terms:
-3u + 8(-2 + u) = 9
-3u + (-2 * 8 + u * 8) = 9
-3u + (-16 + 8u) = 9

Reorder the terms:
-16 + -3u + 8u = 9

Combine like terms: -3u + 8u = 5u
-16 + 5u = 9

Solving
-16 + 5u = 9

Solving for variable 'u'.

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

Add '16' to each side of the equation.
-16 + 16 + 5u = 9 + 16

Combine like terms: -16 + 16 = 0
0 + 5u = 9 + 16
5u = 9 + 16

Combine like terms: 9 + 16 = 25
5u = 25

Divide each side by '5'.
u = 5

Simplifying
u = 5

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