Question

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

Answer 1

9.25

Explanation:

5(0.3) = 1.5

20-1.5=18.5

18.5÷2=9.25

Answer 2

y = 9.25

Explanation:

5x + 2y = 20

when x = 0.3 we have

5(0.3) + 2y = 20

1.5 + 2y = 20

Using the subtraction property subtract 1.5 from both sides of the equation

That's

1.5 - 1.5 + 2y = 20 - 1.5

2y = 18.5

Divide both sides by 2

`(2y)/(2) = (18.5)/(2)`

We have the final answer as

y = 9.25

Hope this helps you