Question

If h(x) = 5 for the function h(x) = 2x + 1, what is the value of x?
2
11
12

Answer 1

We have
\[h(x) =2x+1\]
We are given h(x) =5 for some value of x, and we need to find that, substitute h(x)=5
\[5=2x+1\]
Subtract both sides by 1
\[4=2x\]
divide both sides by 2
\[2=x\]
Hence the value of x=2 for h(x)=5