3u-1=3(4-u)-1

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Solution for 3u-1=3(4-u)-1 equation:


Simplifying
3u + -1 = 3(4 + -1u) + -1

Reorder the terms:
-1 + 3u = 3(4 + -1u) + -1
-1 + 3u = (4 * 3 + -1u * 3) + -1
-1 + 3u = (12 + -3u) + -1

Reorder the terms:
-1 + 3u = 12 + -1 + -3u

Combine like terms: 12 + -1 = 11
-1 + 3u = 11 + -3u

Solving
-1 + 3u = 11 + -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.
-1 + 3u + 3u = 11 + -3u + 3u

Combine like terms: 3u + 3u = 6u
-1 + 6u = 11 + -3u + 3u

Combine like terms: -3u + 3u = 0
-1 + 6u = 11 + 0
-1 + 6u = 11

Add '1' to each side of the equation.
-1 + 1 + 6u = 11 + 1

Combine like terms: -1 + 1 = 0
0 + 6u = 11 + 1
6u = 11 + 1

Combine like terms: 11 + 1 = 12
6u = 12

Divide each side by '6'.
u = 2

Simplifying
u = 2

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