Question

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

Answer 1

Answer:

y= 9,25

Step-by-step explanation:

You have to replace the X for 0,3, so:

5 . 0,3 + 2 . y = 20

Where 5 . 0,3 = 1,5.

1,5 + 2 . y = 20

Have to pass the term in the opposite operation, in this case, subtracting.

2 . y = 20 - 1,5

2 . y = 18,5

Then, pass 2 dividing:

y = 18,5 / 2

y = 9,25

Answer 2

When x=.3 y=9.25. Because when you substitute x into the equation you get 1.5+2y=20 and then you subtract the 1.5 and your equations turns into 2y=18.5 and you divide 18.5 by 2 and your answer is 9.25.