What is the value of s in the equation 3r = 10 + 5s when r = 10?
4, 8, 100, 200

Solution:

Given equation 3r = 10 + 5s; r = 10

Put r = 10 in the given linear equation

3r = 10 + 5s

⇒ 3(10) = 10 + 5s

⇒ 30 = 10 + 5s

⇒ 30 - 10 = 5s

⇒ 20 = 5s

⇒ s = 20/5

⇒ s = 4

What is the value of s in the equation 3r =10 + 5s when r = 10?

Summary:

The value of s in the equation 3r = 10 + 5s when r = 10 is 4.