Question

show that x=4 and y=5 is not a solution of pair of equation x-3y=1,2x+y=11

Answer 1

Answer:

a) 4-3*5=1

1*5=1

5=1

5 is not equal to 1 so x=4 and y=5 is not the solution of pair of equation x-3y=1

b) 2*4+5=11

8+5=11

13=11

13 is not equal to 11 so x=4 and y=5 is not the solution of pair of equation 2x+y=11.