Question

If f(x) = 3x + 2, then find the value of x such that f(x) = -4.

Answer 1

x = -2

Explanation:

So we are given the function f(x) = 3x + 2 and we are asked to find the value of x that makes f(x) = -4. To do this, we can replace f(x) with -4 in the given function and solve for x.

-4 = 3x + 2

Swap sides.

3x + 2 = -4

Subtract 2 from both sides.

3x = -6

Divide both sides by 3.

x = -2

So we have found that x = -2 when f(x) = -4. This means that when x = -2, f(x) = -4.

I hope you find my answer and explanation to be helpful. Happy studying.

Answer 2

See Below

Explanation:

Solve by substituting

-4 = 3x + 2

-2 -2

-6 = 3x

3x/3 = -6/3

x = -2