Answer:
7
Step-by-step explanation:
The text of this expression is:
"If 3 is added to twice a number, the result is 17. Find the number"
Let's call [tex]x[/tex] the number we want to find.
Twice the number is equal to
[tex]2x[/tex]
So, if we add 3 to 2x, we get
[tex]3+2x[/tex]
And we know that this is equal to 17:
[tex]3+2x=17[/tex]
Now we can solve the equation to find x: first, we subtract 3 from both sides
[tex]3+2x-3=17-3\\2x=14[/tex]
Now we divide both sides by 2:
[tex]\frac{2x}{2}=\frac{14}{2}\\x=7[/tex]
