90r-60r+8=35r-400

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Solution for 90r-60r+8=35r-400 equation:



90r-60r+8=35r-400
We move all terms to the left:
90r-60r+8-(35r-400)=0
We add all the numbers together, and all the variables
30r-(35r-400)+8=0
We get rid of parentheses
30r-35r+400+8=0
We add all the numbers together, and all the variables
-5r+408=0
We move all terms containing r to the left, all other terms to the right
-5r=-408
r=-408/-5
r=81+3/5

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