8u+7=-5(u+9)

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Solution for 8u+7=-5(u+9) equation:


Simplifying
8u + 7 = -5(u + 9)

Reorder the terms:
7 + 8u = -5(u + 9)

Reorder the terms:
7 + 8u = -5(9 + u)
7 + 8u = (9 * -5 + u * -5)
7 + 8u = (-45 + -5u)

Solving
7 + 8u = -45 + -5u

Solving for variable 'u'.

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

Add '5u' to each side of the equation.
7 + 8u + 5u = -45 + -5u + 5u

Combine like terms: 8u + 5u = 13u
7 + 13u = -45 + -5u + 5u

Combine like terms: -5u + 5u = 0
7 + 13u = -45 + 0
7 + 13u = -45

Add '-7' to each side of the equation.
7 + -7 + 13u = -45 + -7

Combine like terms: 7 + -7 = 0
0 + 13u = -45 + -7
13u = -45 + -7

Combine like terms: -45 + -7 = -52
13u = -52

Divide each side by '13'.
u = -4

Simplifying
u = -4

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