5u+77=3u+81

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Solution for 5u+77=3u+81 equation:


Simplifying
5u + 77 = 3u + 81

Reorder the terms:
77 + 5u = 3u + 81

Reorder the terms:
77 + 5u = 81 + 3u

Solving
77 + 5u = 81 + 3u

Solving for variable 'u'.

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

Add '-3u' to each side of the equation.
77 + 5u + -3u = 81 + 3u + -3u

Combine like terms: 5u + -3u = 2u
77 + 2u = 81 + 3u + -3u

Combine like terms: 3u + -3u = 0
77 + 2u = 81 + 0
77 + 2u = 81

Add '-77' to each side of the equation.
77 + -77 + 2u = 81 + -77

Combine like terms: 77 + -77 = 0
0 + 2u = 81 + -77
2u = 81 + -77

Combine like terms: 81 + -77 = 4
2u = 4

Divide each side by '2'.
u = 2

Simplifying
u = 2

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