Find the value of x so that the function has the value 2.
f (x) = -3x + 17
X=

x = 5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Algebra I

Function notation

Step-by-step explanation:

Step 1: Define

f(x) = -3x + 17

f(x) = 2

Step 2: Solve for x

Substitute:                    2 = -3x + 17Isolate x term:              -15 = -3xIsolate x:                       5 = xRewrite:                        x = 5

Step 3: Check

Plug in x to verify it's a solution.

Substitute:                   f(2) = -3(5) + 17Multiply:                       f(2) = -15 + 17Add:                             f(2) = 2

Here we see that f(2) does equal 2.

∴ x = 5 is the solution.