Question

What is the value of y when x = 6? -3x + 9y = 18

Answer 1

y=4

Explanation:

We are given the expression:

`-3x+9y=18`

We want to find
`y` when
`x` equals 6. Therefore, we can plug 6 in for x.

`-3(6)+9y=18`

Now, let's begin solving for y. First, multiply -3 and 6.

`-18+9y=18`

Next, add 18 to both sides of the equation. We add because 18 is negative and addition will cancel out the -18 on the left.

`-18+18+9y=18+18`

`9y=18+18`

`9y=36`

Finally, divide both sides by 9. We divide because y is being multiplied by 9, and division is the inverse of multiplication.

`9y/9=36/9`

`y=36/9`

`y=4`

When x=6 in the equation, y is equal to 4.

Answer 2

Hey there! I'm happy to help!

Let's plug in our x value.

-3(6)+9y=18

-18+9y=18

We add 18 to both sides.

9y=36

We divide both sides by 9.

y=4

Have a wonderful day! :D