-7(u+7)=9u-1

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Solution for -7(u+7)=9u-1 equation:


Simplifying
-7(u + 7) = 9u + -1

Reorder the terms:
-7(7 + u) = 9u + -1
(7 * -7 + u * -7) = 9u + -1
(-49 + -7u) = 9u + -1

Reorder the terms:
-49 + -7u = -1 + 9u

Solving
-49 + -7u = -1 + 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.
-49 + -7u + -9u = -1 + 9u + -9u

Combine like terms: -7u + -9u = -16u
-49 + -16u = -1 + 9u + -9u

Combine like terms: 9u + -9u = 0
-49 + -16u = -1 + 0
-49 + -16u = -1

Add '49' to each side of the equation.
-49 + 49 + -16u = -1 + 49

Combine like terms: -49 + 49 = 0
0 + -16u = -1 + 49
-16u = -1 + 49

Combine like terms: -1 + 49 = 48
-16u = 48

Divide each side by '-16'.
u = -3

Simplifying
u = -3

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