Question

Solve the pair of linear equation:(by substitution method)
3x - y = 3
7x + 2y = 20​

Answer 1

Step-by-step explanation:

3x-y=3. ...........(1)

7x+2y=20.............(2)

multypling equations (1) by 2 and equation (2) by 1.

6x-2y=6

7x+2y=20

13x=26

x=2

putting value of x in equation (1).

3 x 2 - y=3

6-y=3

y=3.

x=2

& y=3

Answer 2

Answer:

x = 2

y = 3

Step-by-step explanation:

By substitution method