0.25(r+4)=21/2

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Solution for 0.25(r+4)=21/2 equation: 



0.25(r+4)=21/2

We move all terms to the left:

0.25(r+4)-(21/2)=0

We add all the numbers together, and all the variables

0.25(r+4)-(+21/2)=0

We multiply parentheses

0.25r+1-(+21/2)=0

We get rid of parentheses

0.25r+1-21/2=0

We multiply all the terms by the denominator


(0.25r)*2-21+1*2=0

We add all the numbers together, and all the variables

(+0.25r)*2-21+1*2=0

We add all the numbers together, and all the variables

(+0.25r)*2-19=0

We multiply parentheses

0r-19=0

We add all the numbers together, and all the variables

r-19=0

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

r=19

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