6.7=2.9(u-4)+-2

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Solution for 6.7=2.9(u-4)+-2 equation: 



6.7=2.9(u-4)+-2

We move all terms to the left:

6.7-(2.9(u-4)+-2)=0

We use the square of the difference formula

-(2.9(u-4)-2)+6.7=0



We calculate terms in parentheses: -(2.9(u-4)-2), so:

2.9(u-4)-2

We multiply parentheses

2.9u-11.6-2

We add all the numbers together, and all the variables

2.9u-13.6

Back to the equation:

-(2.9u-13.6)



We get rid of parentheses

-2.9u+13.6+6.7=0

We add all the numbers together, and all the variables

-2.9u+20.3=0

We move all terms containing u to the left, all other terms to the right

-2.9u=-20.3

u=-20.3/-2.9

u=+7

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