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what is the solution to this system? y= 2x + 2, y= x - 1

Sagot :

Space

Answer:

(-3, -4)

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

Algebra I

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

y = 2x + 2

y = x - 1

Step 2: Solve for x

Substitution

  1. Substitute in y:                    2x + 2 = x - 1
  2. Isolate x terms:                    x + 2 = -1
  3. Isolate x:                              x = -3

Step 3: Solve for y

  1. Define equation:                     y = x - 1
  2. Substitute in x:                        y = -3 - 1
  3. Subtract:                                  y = -4
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