Answer:
y = -6 and x = -3
Step-by-step explanation:
Data :
Eq 1 : y = 2x
Eq 2 : y = 7x + 15
So
Take eq 1 and solve for x
⇒ x = y/2 eq 3
Put eq 3 in eq 2
y =7 (y/2) + 15
y - 7y/2 = 15
( 2y-7y )/2 = 15
-5y/2 = 15
-5y =30
y = -6
And put value of y in eq 3 to find x
x = -6/2
x =-3
