Question

Given that f(x) = 2x - 5, find the value of x that makes f(x) = 15.

а
5
b
10
20
Od
25

Answer 1

When x=10 f(x) is equal to 15

Explanation:

Just substitute the two equations, 15=2x-5 -> 20=2x -> x=10.

Answer 2

B) 10
if you plug in 10 for x it will make you multiply 2 time 10 which gives you 20 then subtract 5 which gives you 15