Question

x+2y =1 expresses in primer equation​

Answer 1

Answer:

2y =1 expresses in primer equation

Answer 2

Step-by-step explanation:

x -2y = 1

x−2y=−1 …………..(1)

2x−y=7 ………….(2)

Multiplying equation (1) by 2 and subtract equation (2) from it

2x−4y=−2

2x−y=7

_____________

−3y=−9

____________

y=3

Substitute the value of y in equation (1)

Then x=2y−1=6−1=5

[x=5].