4=76-9u

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Solution for 4=76-9u equation:


Simplifying
4 = 76 + -9u

Solving
4 = 76 + -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.
4 + 9u = 76 + -9u + 9u

Combine like terms: -9u + 9u = 0
4 + 9u = 76 + 0
4 + 9u = 76

Add '-4' to each side of the equation.
4 + -4 + 9u = 76 + -4

Combine like terms: 4 + -4 = 0
0 + 9u = 76 + -4
9u = 76 + -4

Combine like terms: 76 + -4 = 72
9u = 72

Divide each side by '9'.
u = 8

Simplifying
u = 8

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