Question

Substitute Merged 2x-y=-1. 2x+3y=11​

Answer 1

2x-y=1............................(1)

2x+3y=11.......................(2)

from (1)

2x-y=1

2x=1+y

x=(1+y)/2.........................(3)

fill (3) in (2)

2[(1+y)/2]+3y=11

(2+2y+6y)/2=11

2+8y=22

8y=20

y=20/8

y=5/2

fill the value of y in (1)

2x-(5/2)=1

2x=1+5/2

2x=7/2

x=7

Answer 2

Answer:

for equation 1 answer is x=0 and y=1

for equation 2 answer is x= 0 and y =11/3

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