kony345p
10.05.2021 •
Mathematics
Solve the system of equations using substitution.
4x – y = 7
3y – 12x = –21
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Ответ:
Ответ:
Step-by-step explanation:
We want to find the sum of
We can rewrite this as
This becomes;
Recall that;
This implies that;
Combine like terms: