Solve the system by substitution Plz explain how you got the answer can i don't understand one bit

ANSWER:

point form. (-8,24)

equation form. x=-8,y=24

step explanation:

you solve for the first variable in one equation  then substiute the result to the other equation

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.