HELP ASAP Find a set of parametric equations for the rectangular equation.
t=7-x
y=1/x

a. x=7+t, y=1/(-t+7)
b. x=t-7,y=-1/(t+7)
c. x=7-t, y=-1/(t-7)
d. x=t-7,y=1/(t+7)
e.7+t, y=1/(t-7)

1 d know

Step-by-step explanation:

i think it is c, not positive though

step-by-step explanation:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18