Question

F (x) = 5x-10 determine x when f (x) = 15

Answer 1

5(15) = 75
75-10 = 65

Answer 2

Answer: 5=x

Step-by-step explanation:

Ok, so if F(x)=15, then the equation would look like this: $15=5x-10$

The next step would be to add the 10 over from the right to the left side to get $25=5x$

Now divide both sides by 5 to get the answer.