7(u-8)=9u-40

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


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

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

Reorder the terms:
-56 + 7u = -40 + 9u

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

Solving for variable 'u'.

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

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

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

Combine like terms: 9u + -9u = 0
-56 + -2u = -40 + 0
-56 + -2u = -40

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

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

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

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

Simplifying
u = -8

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