khaylaperry
12.12.2020 •
Mathematics
Solve the systems using substitution.
1. y = 7x − 10 y = − 3
2. y = 2x − 15 y = 5x
3. − 2x − 5y = − 5
x = 5y − 20
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Ответ:
9 students in each van
Step-by-step explanation:
subtract the two students in cars 83-2=81
take the 81 left and divide by 9 Van's and you get 9 in each van 81÷9=9