Question

pair of linear equation X-y=-1 and 3 x + 2 Y =12​

Answer 1

Step-by-step explanation:

x-y=-1

x=-(1+y)

puting x value in equation

3x+2y=12

3-1-y+2y=12

2+y=12

y=12-2

y=10

putting the y value in equation

x-y=-1

x-10=-1

x=-1+10

x=9