-9u-15=-2(u-3)

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Solution for -9u-15=-2(u-3) equation:


Simplifying
-9u + -15 = -2(u + -3)

Reorder the terms:
-15 + -9u = -2(u + -3)

Reorder the terms:
-15 + -9u = -2(-3 + u)
-15 + -9u = (-3 * -2 + u * -2)
-15 + -9u = (6 + -2u)

Solving
-15 + -9u = 6 + -2u

Solving for variable 'u'.

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

Add '2u' to each side of the equation.
-15 + -9u + 2u = 6 + -2u + 2u

Combine like terms: -9u + 2u = -7u
-15 + -7u = 6 + -2u + 2u

Combine like terms: -2u + 2u = 0
-15 + -7u = 6 + 0
-15 + -7u = 6

Add '15' to each side of the equation.
-15 + 15 + -7u = 6 + 15

Combine like terms: -15 + 15 = 0
0 + -7u = 6 + 15
-7u = 6 + 15

Combine like terms: 6 + 15 = 21
-7u = 21

Divide each side by '-7'.
u = -3

Simplifying
u = -3

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