Wolfiid
15.12.2020 •
Mathematics
Use equation 1 and equation 2 to eliminate the variable
3x - y - 6z = 16 equation 1
-x - 2y + z = -5 equation 2
2x + 3y + 2z = 10 equation 3
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Ответ:
each kid gets 2 cookies because there is usually 20 kids in a class