Question

Solve by matrix method 2x-3y = 1
x+y = 2​

Answer 1

Answer:

2x-3y =1. . .... 1

x+y=2. ... 2

multiply by 3 in equation 2

3x+3y=6. ... 3

from 1&3 we get

4x=7

x=7/4

putting the value of x in equation 2

x+y=2

7/4+y=2

y=2-7/4

y=8-7/4

=1/4