Question

8y - 1 = x
3x = 2y
Solve the system of equations by substitution.


a.(1/33, 1/11)
b.(1/11, 3/22)
c.no solution
d.coincident

Answer 1

3 [ 8y -1] = 2y
24y - 3 = 2y
22y = 3
=> y = 3/22

substitute value of y in , 8y-1=x
8(3/22) -1 = x
=> x = 12/11 - 1
x = 1/11

So, (b)

Answer 2

what about

7 + 2y = 8x
3x - 2y = 0
Solve the system of equations by substitution.


(70/3, 140/9)
(7/5, 21/10)
no solution
coincident