Solve the following equation
3r+90=5r
Solve for r
3r + 90 = 5r
Group our variables 3r and 5r subtract 5r from both sides
3r + 90 - 5r = 5r - 5r
-2r + 90 = 0
Group our constants 90 and 0. subtract 90 from both sides
-2r + 90 - 90 = 0 - 90
-2r = -90
r = 45
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