sydneydavis57
03.11.2020 •
Mathematics
Y
у = 2х - 10
3х - 7y = 37
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Ответ:
(3,-4)
Step-by-step explanation:
3x-7(2x-10)=37
3x-14x+70=37
-11x+70=37
-70 -70
-11x= -33
divide -11 both sides
x= 3
y=2(3)-10
y=6-10
y= -4
Ответ:
each kid gets 2 cookies because there is usually 20 kids in a class