198-22y = 220 -22y = 220-198 -22y = 22 y = 22/-22 y = -1
15 percent 0 equals 0; 0 percent 15 equals 0. Both the above are true
yes
maybe
0 it equals 0
198-22y = 220 -22y = 220-198 -22y = 22 y = 22/-22 y = -1
Log4 64=y 64=4y 26=22y Therefore y=3
-4x + 3y + 3z = -209-6x - y - 8z = -209-9x + 4y - 7z = -418Make a simple equation from elimination.-4x + 3y + 3z = -6x- y - 8z2x + 4y + 11z = 0-4x + 3y + 3z = -2094x + 8y + 22z = 011y + 25z = -209Make another simple equation.-36x - 6y - 48z = -1254-36x + 16y - 28z = -1672-22y - 20z = 418Solve for "z" with the 2 simple equations and then subsitute in simple equations for the solution of "y".22y + 50z = -418-22y - 20z = 41830z = 0z = 011y + 25(0) = -209y = -19Subsitute "y" and "z" and solve for "x".-6x + 19 = -209-6x = -228x = 38(38, -19, 0).
15 percent 0 equals 0; 0 percent 15 equals 0. Both the above are true
Two equations are needed to solve for two variables, and we have them. Let one number=x and the other=y x+y=22 and x*y=117 subtract y from both sides and you get x=22-y substituting (22-y) in for x gives (22-y)*y=117 after you distribute the y, 22y-y2=117 the easiest step would be to add y2 to both sides and subtract 22y from both sides 22y=117+y2 0=y2-22y+117 factor to (y-13)(y-9)=0 so y=13 or 9 One of the numbers is 13 and the other is 9
yes
0
0
maybe
11(4x - 2y - 11z)
11(4x - 2y - 11z)
It equals 0.