Given the function f(x) = 2(x + 8), find x if f(x) = 12.

Solution:

Given, function f(x) = 2(x + 8)

We have to find x if f(x) = 12.

Now, 2(x + 8) = 12

By multiplicative and distributive property,

2x + 16 = 12

2x = 12 - 16

2x = -4

x = -4/2

x = -2

Therefore, the value of x is -2.

Example:

Given the function f(x) = x + 2, find x if f(x) = 9

Solution:

Given, f(x) = x + 2

We have to find x if f(x) = 9.

Now, x + 2 = 9

x = 9 +2

x = 11

Therefore, the value of x is 11.

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Given the function f(x) = 2(x + 8), find x if f(x) = 12.

Summary:

Given the function f(x) = 2(x+8), if f(x) = 12 the value of x is -2.