5r+4+8=-13+1+8r+r

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Solution for 5r+4+8=-13+1+8r+r equation: 



5r+4+8=-13+1+8r+r

We move all terms to the left:

5r+4+8-(-13+1+8r+r)=0

We add all the numbers together, and all the variables

5r-(9r-12)+4+8=0

We add all the numbers together, and all the variables

5r-(9r-12)+12=0

We get rid of parentheses

5r-9r+12+12=0

We add all the numbers together, and all the variables

-4r+24=0

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

-4r=-24

r=-24/-4

r=+6

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