Which systems of equations have enough variables and equations to potentially solve the system? Select all that apply.

1) {3x−4=y
−5x+7=y

2) {3x−4y=8z
−3x+6y=4z

3) {2x−4y=8
−2x+6y=14

4) {y=2x−4
y=−9z+6

5) {y=2x−4
y=−x+6

please get me to 10points and thank you! :)

u dumb boi

step-by-step explanation:

hi there!

question 1 answer: p/q can be terminating when q = 5^m * 2^n

question 2 answer: -1 and -1

question 3 answer: -4

question 4 answer: 5/12

hope this : )

answer: 89 x 5

step-by-step explanation:

answer: a. 40 sq. units

step-by-step explanation:

pretty simple, since the rectangle is 80 and the triangle is half of it, divide by 2. you'll get 40 afterwards.

hope it ; d.