4R-9=3.5x-9

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Solution for 4R-9=3.5x-9 equation: 



4-9=3.5R-9

We move all terms to the left:

4-9-(3.5R-9)=0

We add all the numbers together, and all the variables

-(3.5R-9)-5=0

We get rid of parentheses

-3.5R+9-5=0

We add all the numbers together, and all the variables

-3.5R+4=0

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

-3.5R=-4

R=-4/-3.5

R=1+0.5/3.5

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