7=13-2u

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Solution for 7=13-2u equation:


Simplifying
7 = 13 + -2u

Solving
7 = 13 + -2u

Solving for variable 'u'.

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

Add '2u' to each side of the equation.
7 + 2u = 13 + -2u + 2u

Combine like terms: -2u + 2u = 0
7 + 2u = 13 + 0
7 + 2u = 13

Add '-7' to each side of the equation.
7 + -7 + 2u = 13 + -7

Combine like terms: 7 + -7 = 0
0 + 2u = 13 + -7
2u = 13 + -7

Combine like terms: 13 + -7 = 6
2u = 6

Divide each side by '2'.
u = 3

Simplifying
u = 3

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