9u-23=-4(u-4)

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Solution for 9u-23=-4(u-4) equation:


Simplifying
9u + -23 = -4(u + -4)

Reorder the terms:
-23 + 9u = -4(u + -4)

Reorder the terms:
-23 + 9u = -4(-4 + u)
-23 + 9u = (-4 * -4 + u * -4)
-23 + 9u = (16 + -4u)

Solving
-23 + 9u = 16 + -4u

Solving for variable 'u'.

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

Add '4u' to each side of the equation.
-23 + 9u + 4u = 16 + -4u + 4u

Combine like terms: 9u + 4u = 13u
-23 + 13u = 16 + -4u + 4u

Combine like terms: -4u + 4u = 0
-23 + 13u = 16 + 0
-23 + 13u = 16

Add '23' to each side of the equation.
-23 + 23 + 13u = 16 + 23

Combine like terms: -23 + 23 = 0
0 + 13u = 16 + 23
13u = 16 + 23

Combine like terms: 16 + 23 = 39
13u = 39

Divide each side by '13'.
u = 3

Simplifying
u = 3

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