Question

find the solution of the following simultaneous equations
graphically.3x+y=14;7x-3y=6​

Answer 1

Answer:

x=3 and y=5.

Step-by-step explanation:

given equations are 3x+y=14 and 7x-3y=6

So multiply 1st equation with 7 and 2nd equation with 3 then subtract 2nd equation from 1st.

21x+7y=98

-(21x-9y=18)

then you get 16y=80 which simplifies to y=5. then substitute y in equation 3x+y=14 then you get x=3.