Which of the following equations has an infinite number of solutions?

A. 3x-3=-4x
B. 2y+4-y=16
C. 7x+5=4x+5+3x
D. 6y-2=2(y-1)***
Is the answer D?

2 answers

Lets evaluate D

6y-2=2(y-1)
Now distribute the 2

6y-2=2y-2
Add two to both sides....in this case they cancel each other.

Now we have 6y=2y
The only number that will make this equal is 0. SO y=0 here.

So D cant be the answer.
Ok B then?