7=-3.4+r

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Solution for 7=-3.4+r equation: 



7=-3.4+r

We move all terms to the left:

7-(-3.4+r)=0

We add all the numbers together, and all the variables

-(r-3.4)+7=0

We get rid of parentheses

-r+3.4+7=0

We add all the numbers together, and all the variables

-1r+10.4=0

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

-r=-10.4

r=-10.4/-1

r=10+0.4/1

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