Question

Given f(x)
-4x - 10 and f(x) = 10. what is the value of x?

Answer 1

x = -5

Explanation:

f(x) = -4x - 10 and f(x) = 10

Step 1: Substitute 10 for f(x)

10 = -4x - 10

Step 2: Add 10 to both sides to get x alone

10 = -4x - 10

+10 +10

20 = -4x

Step 3: Divide both sides by -4 to get x alone

20 = -4x

-4 -4

x = -5