Respuesta :

Space

Answer:

x = 8/5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

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

Equality Properties

Step-by-step explanation:

Step 1: Define

[tex]\frac{x}{4} = \frac{2}{5}[/tex]

Step 2: Solve for x

  1. Cross multiply:                     5x = 8
  2. Isolate x:                               x = 8/5
Cross multiplication:
2 . 4=8
5 . x =5x
5x = 8
x = 8/5

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