What is the value of y in the equation 5x + 2y = 20, when x = 0.3?

Solution:

Given equation is 5x + 2y = 20

If the point x = 0.3 is replaced then

If x = 0.3 in 5x + 2y = 20 then

5(0.3) + 2y = 20

1.5 + 2y = 20

2y = 20 - 1.5 = 18.5

Obtained by both graphically and by simplification.

What is the value of y in the equation 5x + 2y = 20, when x = 0.3?

Summary:

The value of y in the equation 5x + 2y = 20, when x = 0.3 is 18.5