nique1024
14.10.2019 •
Mathematics
Use the elimination method to solve the system of equations.choose the correct ordered.
4x+7y=60
-4x+7y=-4
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Ответ:
B) -4x+7y=-4
Adding the 2 equations
14y = 56
y = 4
A) 4x+7*4=60
A) 4x+28=60
A) 4x = 32
x = 8
Ответ: