5(u-1)=4(1-u)+81

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Solution for 5(u-1)=4(1-u)+81 equation:


Simplifying
5(u + -1) = 4(1 + -1u) + 81

Reorder the terms:
5(-1 + u) = 4(1 + -1u) + 81
(-1 * 5 + u * 5) = 4(1 + -1u) + 81
(-5 + 5u) = 4(1 + -1u) + 81
-5 + 5u = (1 * 4 + -1u * 4) + 81
-5 + 5u = (4 + -4u) + 81

Reorder the terms:
-5 + 5u = 4 + 81 + -4u

Combine like terms: 4 + 81 = 85
-5 + 5u = 85 + -4u

Solving
-5 + 5u = 85 + -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.
-5 + 5u + 4u = 85 + -4u + 4u

Combine like terms: 5u + 4u = 9u
-5 + 9u = 85 + -4u + 4u

Combine like terms: -4u + 4u = 0
-5 + 9u = 85 + 0
-5 + 9u = 85

Add '5' to each side of the equation.
-5 + 5 + 9u = 85 + 5

Combine like terms: -5 + 5 = 0
0 + 9u = 85 + 5
9u = 85 + 5

Combine like terms: 85 + 5 = 90
9u = 90

Divide each side by '9'.
u = 10

Simplifying
u = 10

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