PLEASE HELP IM TROUBLED! WILL GIVE BRAINLIEST TO BEST ANSWER! 20 POINTS Multiplicative inverses (reciprocals) are two number whose product is 1. Which pair of numbers are multiplicative inverses?

Group of answer choices

0 and 1

0.25 and 4

1/2 and 1/2

3 and -3

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