9(u-9)=-4u+36

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Solution for 9(u-9)=-4u+36 equation:


Simplifying
9(u + -9) = -4u + 36

Reorder the terms:
9(-9 + u) = -4u + 36
(-9 * 9 + u * 9) = -4u + 36
(-81 + 9u) = -4u + 36

Reorder the terms:
-81 + 9u = 36 + -4u

Solving
-81 + 9u = 36 + -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.
-81 + 9u + 4u = 36 + -4u + 4u

Combine like terms: 9u + 4u = 13u
-81 + 13u = 36 + -4u + 4u

Combine like terms: -4u + 4u = 0
-81 + 13u = 36 + 0
-81 + 13u = 36

Add '81' to each side of the equation.
-81 + 81 + 13u = 36 + 81

Combine like terms: -81 + 81 = 0
0 + 13u = 36 + 81
13u = 36 + 81

Combine like terms: 36 + 81 = 117
13u = 117

Divide each side by '13'.
u = 9

Simplifying
u = 9

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