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

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


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

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

Reorder the terms:
-7 + -5u = 9(7 + u)
-7 + -5u = (7 * 9 + u * 9)
-7 + -5u = (63 + 9u)

Solving
-7 + -5u = 63 + 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.
-7 + -5u + -9u = 63 + 9u + -9u

Combine like terms: -5u + -9u = -14u
-7 + -14u = 63 + 9u + -9u

Combine like terms: 9u + -9u = 0
-7 + -14u = 63 + 0
-7 + -14u = 63

Add '7' to each side of the equation.
-7 + 7 + -14u = 63 + 7

Combine like terms: -7 + 7 = 0
0 + -14u = 63 + 7
-14u = 63 + 7

Combine like terms: 63 + 7 = 70
-14u = 70

Divide each side by '-14'.
u = -5

Simplifying
u = -5

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