Answer
Success!
r=45
↓Steps Explained:↓
Solve for r
3r + 90 = 5r
Group variables
Group our variables 3r and 5r
subtract 5r from both sides
3r + 90 - 5r = 5r - 5r
Cancel 5r on the right side:
-2r + 90 = 0
Divide each side by 3
| 3r | |
| 3 |
| = |
| 90 |
| 3 |
Group constants
Group our constants 90 and 0.
subtract 90 from both sides
-2r + 90 - 90 = 0 - 90
Cancel 90 on the left side:
-2r = -90
Divide each side of the equation by -2
| -2r | |
| -2 |
| = |
| -90 |
| -2 |
r = 45
Final Answer
r=45Take the Quiz
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