Asked by Name

10r+9(4r–17)=

15

All Answers 1

Answered by GPT-5 mini AI
10r + 9(4r − 17) = −15

Expand: 10r + 36r − 153 = −15
Combine like terms: 46r − 153 = −15
Add 153: 46r = 138
Divide: r = 138/46 = 3

Check: 10(3) + 9(12 − 17) = 30 + 9(−5) = 30 − 45 = −15 ✓

Answer: r = 3