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Plz help me answer this

Plz help me answer this-example-1
User Tomeduarte
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1 Answer

5 votes

Answer:

(0, 4)

x = 0

y = 4

General Formulas and Concepts:

Pre-Algebra

  • Order of Operations: BPEMDAS
  • Equality Properties

Algebra I

  • Solving systems of equations using substitution/elimination

Explanation:

Step 1: Define systems

12x - 5y = -20

y = x + 4

Step 2: Solve for x

Substitution

  1. Substitute in y: 12x - 5(x + 4) = -20
  2. Distribute -5: 12x - 5x - 20 = -20
  3. Combine like terms: 7x - 20 = -20
  4. Isolate x term: 7x = 0
  5. Isolate x: x = 0

Step 3: Solve for y

  1. Define original equation: y = x + 4
  2. Substitute in x: y = 0 + 4
  3. Add: y = 4
User StocksR
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