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14 votes
14 votes
For f(x)=4x+2, what value of x makes f(x)=-14

User Irriss
by
2.4k points

2 Answers

23 votes
23 votes

Answer:

x = -4

Explanation:

Given:

  • f(x) = 4x + 2

If the value of f(x) is -14,

⇒ 4x + 2 = -14 [f(x) = 4x - 2 and -14]

To simplify the equation, we need to isolate the variable completely. Start out by subtracting 2 both sides. This will isolate "x" and the cooeficient of x.

  • ⇒ 4x = -14 - 2
  • ⇒ 4x = -16

Then, divide 4 both sides to isolate the cooeficient of x on one side and a constant on the other side. The constant will be the value of x.

  • ⇒ 4x/4 = -16/4
  • x = -4

Thus, -4 is the value of x that makes f(x) equivalent to -14

User Greg Ross
by
2.3k points
17 votes
17 votes

Hey there,

f(x) = 4x + 2

what value of x makes f(x) = -14?

  • Answer :

x = -4 ✅

  • Explanations:

f(x) = 4x + 2

>> We want f(x) to be equal to -14:

4x + 2 = -14

>> Substract 2 from both sides :

4x + 2 - 2 = -14 - 2

4x = -16

>> Divide both sides by 4:

4x/4 = -16/4

x = -4

Have a good day ;)

User Ele
by
2.6k points
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