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What value makes f(x)=11 if f(x)=5(4x-3)-2(x-6)

please answer asap

2 Answers

7 votes

Final answer:

To find the value that makes f(x) = 11, set the equation f(x) = 5(4x-3) - 2(x-6) equal to 11 and solve for x. The value that makes f(x) = 11 is x = 7/9.

Step-by-step explanation:

To find the value that makes f(x) = 11, we can set the equation f(x) = 5(4x-3) - 2(x-6) equal to 11 and solve for x. Let's go step by step:

  1. Distribute: f(x) = 20x - 15 - 2x + 12
  2. Combine like terms: f(x) = 18x - 3
  3. Set equal to 11: 18x - 3 = 11
  4. Add 3 to both sides: 18x = 14
  5. Divide both sides by 18: x = 14/18
  6. Simplify the fraction if needed: x = 7/9

Therefore, the value that makes f(x) = 11 is x = 7/9.

User Boflynn
by
4.3k points
1 vote
Substitute 11 for f(x) and solve
5(4x-3)-2(x-6)=11
Distribute
20x-15-2x+12=11
Combine
18x-3=11
18x=14
x=14/18
x=7/9
User Joel B Fant
by
3.7k points