Question

If `7+3x=22`, then what is `2x`?

Answer 1

`2x=color(blue)(10`

Explanation:

`7+3x=22`

`3x=22-7`

`3x=15`

`x=15/3`

`color(blue)(x=5`

So `2x = 2*color(blue)(5`

`=color(blue)(10`