Question

a) Solve graphically
2x+y=8,x-y=1 by substitution method​

Answer 1

Answer:

2x+y=8

x-y=1

y=x-1.....

put y=x-1 in above equation

2x+x-1=8

3x-1=8

3x=8+1

3x=9

x=9/3=3

y= x-1

y=3-1=2