Respuesta :

Space

Answer:

x = 6

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

Algebra I

  • Solving systems of equations using substitution/elimination

Explanation:

Step 1: Define Systems

4x - 2y = 16

4y = -3x + 34

Step 2: Rewrite Systems

4x - 2y = 16

  1. [Multiplication Property of Equality] Multiply everything by 2:                    8x - 4y = 32

Step 3: Redefine Systems

8x - 4y = 32

4y = -3x + 34

Step 4: Solve for x

Elimination

  1. Combine 2 equations:                                                                                    8x = 32 - 3x + 34
  2. [Addition] Combine like terms:                                                                      8x = -3x + 66
  3. [Addition Property of Equality] Add 3x on both sides:                                 11x = 66
  4. [Division Property of Equality] Divide 11 on both sides:                               x = 6

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