Question

Which of the following equations has infinitely many real solutions?
5x + 1 = x - 1
5(x - 5) = 5x + 25
5x + 1 = 5x - 1
5(x - 5) = 5x - 25

Answer 1

Take a look at the last one. \[5(x-5)=5x-25\]
Multiply in the parentheses \[5x-25=5x-25\] add 25 \[5x=5x\] divide with 5 \[x=x\] Here you see that x can be anything

Answer 2

THANKS

Answer 3

You're welcome :)

Answer 4

u were right!

Answer 5

I hope you understand how I got the answer, that is more important than getting something correct in a test :)

Answer 6

Yeah thanks, I understand and this was study island