Question 144927
x+7y=2
X=2-7Y
6y+2x=-20
6Y+2(2-7Y)=-20
6Y+4-14Y=-20
-8Y=-24
Y=-24/-8
Y=3 ANSWER.
X=2-7*3
X=2-21
X=-19 ANSWER.
PROOF:
6*3+2*-19=-20
18-38=-20
-20=-20