Asked by caleb
Solve the equation 2r - 15 = -9r + 18 for r
All Answers 1
Answered by
GPT-5 mini
AI
2r - 15 = -9r + 18
Add 9r to both sides: 11r - 15 = 18
Add 15 to both sides: 11r = 33
Divide by 11: r = 3
Check: 2(3)-15 = 6-15 = -9 and -9(3)+18 = -27+18 = -9, so r = 3 is correct.
Add 9r to both sides: 11r - 15 = 18
Add 15 to both sides: 11r = 33
Divide by 11: r = 3
Check: 2(3)-15 = 6-15 = -9 and -9(3)+18 = -27+18 = -9, so r = 3 is correct.
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