3u-9=-6(u-9)

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Solution for 3u-9=-6(u-9) equation:


Simplifying
3u + -9 = -6(u + -9)

Reorder the terms:
-9 + 3u = -6(u + -9)

Reorder the terms:
-9 + 3u = -6(-9 + u)
-9 + 3u = (-9 * -6 + u * -6)
-9 + 3u = (54 + -6u)

Solving
-9 + 3u = 54 + -6u

Solving for variable 'u'.

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

Add '6u' to each side of the equation.
-9 + 3u + 6u = 54 + -6u + 6u

Combine like terms: 3u + 6u = 9u
-9 + 9u = 54 + -6u + 6u

Combine like terms: -6u + 6u = 0
-9 + 9u = 54 + 0
-9 + 9u = 54

Add '9' to each side of the equation.
-9 + 9 + 9u = 54 + 9

Combine like terms: -9 + 9 = 0
0 + 9u = 54 + 9
9u = 54 + 9

Combine like terms: 54 + 9 = 63
9u = 63

Divide each side by '9'.
u = 7

Simplifying
u = 7

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