Substitute y in second equation
-5x-(4x+6)=21
-9x-6=21
9x+6=-21
9x=-27
X=-3
Solve for y:
Y=4(-3)+6
Y=-6
The answer would be 18 because the whole number is 17 and the fraction is 5/8, which is more than 1/2 so you would round up, making the next whole number 18.
A and b I believe I think it is
X=-2
In the expression, x^2+4/x, substitute x with -2.
Therefore, the expression will be: -2^2+4/-2
-2^2 is -4. -4+4=0.
0 divided by any number is 0. Therefore 0 divided by -2=0
0 is the final answer.