Question

If f (x) = 2x + 3 and f (x) = 35, then what is x?

Answer 1

`\sf \: x = 16`

Explanation:

Given functions,

→ f(x) = 2x + 3

→ f(x) = 35

Now we have to,

→ Find the required value of x.

Forming the equation,

→ f(x) = f(x)

→ 2x + 3 = 35

Then the value of x will be,

→ 2x + 3 = 35

→ 2x = 35 - 3

→ 2x = 32

→ x = 32 ÷ 2

→ [ x = 16 ]

Hence, the value of x is 16.

Answer 2

Answer is 16

35=2x+3

35-3=32

32=2x

32/2=16