7r+9=2r-3+4

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Solution for 7r+9=2r-3+4 equation: 



7r+9=2r-3+4

We move all terms to the left:

7r+9-(2r-3+4)=0

We add all the numbers together, and all the variables

7r-(2r+1)+9=0

We get rid of parentheses

7r-2r-1+9=0

We add all the numbers together, and all the variables

5r+8=0

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

5r=-8

r=-8/5

r=-1+3/5

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