Respuesta :

Space

Answer:

x = 2

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

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality

Step-by-step explanation:

Step 1: Define

2x + 3 = 7

Step 2: Solve for x

  1. [Subtraction Property of Equality] Subtract 3 on both sides:                        2x = 4
  2. [Division Property of Equality] Divide 2 on both sides:                                  x = 2