7(u-1)=9u+3

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Solution for 7(u-1)=9u+3 equation:


Simplifying
7(u + -1) = 9u + 3

Reorder the terms:
7(-1 + u) = 9u + 3
(-1 * 7 + u * 7) = 9u + 3
(-7 + 7u) = 9u + 3

Reorder the terms:
-7 + 7u = 3 + 9u

Solving
-7 + 7u = 3 + 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 + 7u + -9u = 3 + 9u + -9u

Combine like terms: 7u + -9u = -2u
-7 + -2u = 3 + 9u + -9u

Combine like terms: 9u + -9u = 0
-7 + -2u = 3 + 0
-7 + -2u = 3

Add '7' to each side of the equation.
-7 + 7 + -2u = 3 + 7

Combine like terms: -7 + 7 = 0
0 + -2u = 3 + 7
-2u = 3 + 7

Combine like terms: 3 + 7 = 10
-2u = 10

Divide each side by '-2'.
u = -5

Simplifying
u = -5

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