4r+42=-9r+3=

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Solution for 4r+42=-9r+3= equation: 



4r+42=-9r+3=

We move all terms to the left:

4r+42-(-9r+3)=0

We get rid of parentheses

4r+9r-3+42=0

We add all the numbers together, and all the variables

13r+39=0

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

13r=-39

r=-39/13

r=-3

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