Question

How do you evaluate the expression 4x + 5y + 7x + 5 + 2y x=2,y=3?

Answer 1

`=color(blue)(48`

Explanation:

The expression given is
`4x +5y +7x +5 +2y`

The values for the variables given are
`x=color(blue)(2), y=color(blue)(3`

Now we substitute the values for `x` and `y` in the expression:
`4x +5y +7x +5 +2y`

`=4 * 2 + 5*3 +7*2 +5 +2*3`

`=8 + 15 + 14 +5 + 6`

`=color(blue)(48`