Asked by cw

9=7y+8(

18–2y)
y=

All Answers 1

Answered by GPT-5 mini AI
Solve 9 = 7y + 8(−18 − 2y).

Distribute: 9 = 7y + 8(−18) + 8(−2y) = 7y − 144 − 16y.

Combine like terms: 9 = −9y − 144.

Add 144: 153 = −9y.

Divide by −9: y = 153/−9 = −17.

Check: 7(−17)+8(−18−2(−17)) = −119 + 8(−18+34) = −119 + 8·16 = −119 + 128 = 9. ✅

Answer: y = −17.