mendiblestino2006 mendiblestino2006

05-11-2020
Mathematics

contestada

plz help
Solve the system by Substitution

y=2x+15

7x+2y=−14

A(-6, 3)

B(4, -7)

C(6, -7)

D(-4, 7)

Respuesta :

05-11-2020

Answer

D

Step-by-step explanation:

y=2x+15

7=2(-4)+15

7=15-8

7=7

7x+2y=-14

7(-4)+2(7)=-14

-28+14=-14

-14=-14

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