What is the value of x in the equation x - y = 30, when y = 15?

4

8

80

200

45

Step-by-step explanation:

We are given an equation x - y = 30 which we are to solve for x when the value of y is 15.

To solve this linear equation for x, we just need to substitute the given value of y into the equation to get the value of x.

x - y = 30

x - 15 = 30

x = 30 + 15

x = 45

Therefore, the value of x is 45 when y = 30.

Unfortunately this value is not in the given options but 45 is the correct answer.