3=7(4+-2u)+-6

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Solution for 3=7(4+-2u)+-6 equation: 


Simplifying
3 = 7(4 + -2u) + -6
3 = (4 * 7 + -2u * 7) + -6
3 = (28 + -14u) + -6

Reorder the terms:
3 = 28 + -6 + -14u

Combine like terms: 28 + -6 = 22
3 = 22 + -14u

Solving
3 = 22 + -14u

Solving for variable 'u'.

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

Add '14u' to each side of the equation.
3 + 14u = 22 + -14u + 14u

Combine like terms: -14u + 14u = 0
3 + 14u = 22 + 0
3 + 14u = 22

Add '-3' to each side of the equation.
3 + -3 + 14u = 22 + -3

Combine like terms: 3 + -3 = 0
0 + 14u = 22 + -3
14u = 22 + -3

Combine like terms: 22 + -3 = 19
14u = 19

Divide each side by '14'.
u = 1.357142857

Simplifying
u = 1.357142857

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