Question

What’s the value of 3x+5y, when x=12 and y=4

Answer 1

Answer: 36

Explanation:

The given mathematical expression :
`3x+5y`, where x and y are variables.

To find the value of the given expression at x=12 and y=4, we need to substitute the given values of x and y in the given expression , we get

`3(12)+5(4)=36+20=56`

Hence, the value of the given expression
`3x+5y` , when x=12 and y=4 is 36.

Answer 2

Plug in 12 for x, and 4 for y

3(12) = 36

5(4) = 20

Add the two terms together

36 + 20 = 56

56 is your answer

hope this helps