3u-7=4(2-u)-1

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Solution for 3u-7=4(2-u)-1 equation:


Simplifying
3u + -7 = 4(2 + -1u) + -1

Reorder the terms:
-7 + 3u = 4(2 + -1u) + -1
-7 + 3u = (2 * 4 + -1u * 4) + -1
-7 + 3u = (8 + -4u) + -1

Reorder the terms:
-7 + 3u = 8 + -1 + -4u

Combine like terms: 8 + -1 = 7
-7 + 3u = 7 + -4u

Solving
-7 + 3u = 7 + -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.
-7 + 3u + 4u = 7 + -4u + 4u

Combine like terms: 3u + 4u = 7u
-7 + 7u = 7 + -4u + 4u

Combine like terms: -4u + 4u = 0
-7 + 7u = 7 + 0
-7 + 7u = 7

Add '7' to each side of the equation.
-7 + 7 + 7u = 7 + 7

Combine like terms: -7 + 7 = 0
0 + 7u = 7 + 7
7u = 7 + 7

Combine like terms: 7 + 7 = 14
7u = 14

Divide each side by '7'.
u = 2

Simplifying
u = 2

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