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prohojiy [21]
3 years ago
10

Y = 2x – 4 y = -x + 5

Mathematics
1 answer:
Tasya [4]3 years ago
7 0

Answer:

(3, 2)

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

Equality Properties

<u>Algebra I</u>

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

y = 2x - 4

y = -x + 5

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

<em>Substitution</em>

  1. Substitute in <em>y</em>:                    2x - 4 = -x + 5
  2. Add <em>x</em> to both sides:           3x - 4 = 5
  3. Add 4 to both sides:           3x = 9
  4. Isolate <em>x</em>:                              x = 3

<u>Step 3: Solve for </u><em><u>y</u></em>

  1. Define equation:                    y = -x + 5
  2. Substitute in <em>x</em>:                       y = -3 + 5
  3. Add:                                        y = 2
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