Question

whether the equation 3 x is equal to 7 Y is equation in one variable or not​

Answer 1

Answer:

yes it is one variable

Step-by-step explanation:

3x=7y

x=7y/3

Answer 2

Given, x – 2 = 7

By adding 2 to both sides, we get

x – 2 + 2 = 7 + 2

⇒ x = 7 + 2

⇒ x = 9