-9u+40=-7(u-8)

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Solution for -9u+40=-7(u-8) equation:


Simplifying
-9u + 40 = -7(u + -8)

Reorder the terms:
40 + -9u = -7(u + -8)

Reorder the terms:
40 + -9u = -7(-8 + u)
40 + -9u = (-8 * -7 + u * -7)
40 + -9u = (56 + -7u)

Solving
40 + -9u = 56 + -7u

Solving for variable 'u'.

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

Add '7u' to each side of the equation.
40 + -9u + 7u = 56 + -7u + 7u

Combine like terms: -9u + 7u = -2u
40 + -2u = 56 + -7u + 7u

Combine like terms: -7u + 7u = 0
40 + -2u = 56 + 0
40 + -2u = 56

Add '-40' to each side of the equation.
40 + -40 + -2u = 56 + -40

Combine like terms: 40 + -40 = 0
0 + -2u = 56 + -40
-2u = 56 + -40

Combine like terms: 56 + -40 = 16
-2u = 16

Divide each side by '-2'.
u = -8

Simplifying
u = -8

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