Question

What is the value of x in the equation 1/5x - 2/3y = 30 when y = 15?

4
8
80
200

Answer 1

x = 200

Explanation:

To find the value of x when y = 15, we can plug in 15 for y and solve for x:

`(1)/(5)x-(2)/(3)(15)=30\\ (1)/(5)x-10=30\\ (1)/(5)x=40\\ x = 200`

Answer 2

Answer: x = 200
Process:
1/5x- 2/3y = 30
1/5x - 2/3(15) =30
1/5x - 10 = 30
1/5x = 40
x = 200