Are you trying to solve for x and y?
y=2x+1; x+2y=17
sub in one variable in the other equation.
x+2(2x+1)=17
x+4x+2=17
5x=15
x=3
now that you have x value, plug into the original equation to find y and check with the other.
y=2(3)+1 = 7
x+2y=17 = 3 + 2(7) = 17 ; 17=17
Largest 4 digit number =9999
Smallest 3 digit number= 100
So the product of 9999 x 100 = 999,900
Yes you are correct! It doesn't have a solution which means no solution, hope this helps! :D
If it is in a square formation, you would have to find the square root of 36 which is 6