1) Plug 5 into all the spots for x. See if it makes the equation true.
A. 2+5 = 3 Nope
B. 3(5) = 15 Yep
C. 5/2 = 10 Nuh-uh
D. 5-7 = 12 Nah
B is the answer :)
I'm not sure if you need the answer to #2 but I'll answer it anyway. :)
2) An equation has to have a solution. This means it has an equal sign. C is the only one that has an equal sign.
C is the answer :)
