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d1i1m1o1n [39]
3 years ago
7

Given that f(x)=2x-5, find the value of x that makes f(x)=15​

Mathematics
1 answer:
nikitadnepr [17]3 years ago
3 0

Answer:

x = 10

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Functions
  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 2x - 5

f(x) = 15

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute in f(x) [Function]:                                                                             15 = 2x - 5
  2. [Addition Property of Equality] Add 5 on both sides:                                    20 = 2x
  3. [Division Property of Equality] Divide 2 on both sides:                                  10 = x
  4. Rewrite:                                                                                                             x = 10
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