Question

How the answer of 3x+2y-18=0 is (4,3)

Answer 1

Answer:

Step-by-step explanation:

3(4)+2(3)=18

Answer 2

3x+2y=18

x=4, y=3 (in the solution of 4,3)

therefore, 3(4)+2(3)=18

12+6=18

18=18(LHS=RHS)

Hence,proved.