Question

state which of the following are equations with variable
a) 12 = x -5
b) 2x > 7
c) x2 = 5
d) 5 +7 =3 + 9
e) 7 =( 11x5) - (12 x 4)

Answer 1

Answer:

I think (D) and (E) both are correct answer

Answer 2

Answer:

(a) One variable; x=17

(c) One variable; x=5/2

Hope it's help you :)