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

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


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

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

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

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

Solving for variable 'u'.

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

Add '7u' to each side of the equation.
3 + -9u + 7u = 7 + -7u + 7u

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

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

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

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

Combine like terms: 7 + -3 = 4
-2u = 4

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

Simplifying
u = -2

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