Question

solve the following pair of linear equations by elimination method:
3x+y=15 2x-y=5​

Answer 1

Answer:

since

3x+y=15_1

2x-y=5_2

equat. 1+equat.2

3x+y=15

2x-y=5

_____Add.

5x=20

x=20/5

x=4