william1690
04.01.2020 •
Mathematics
One and a half pints equal blank cups
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Ответ:
Ответ:
Ответ:
Step-by-step explanation:
Solving both for 7y gives an equality
6x-30=6-21
6x-30=-15
6x=15
x=5/2 and since 6-7y=21
7y=-15
y=-15/7 so the solution is the point
(5/2,-15/7)