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Solve each system by elimination.
1) 6x - y=-14
-2x + y = 6

Sagot :

Space

Answer:

(-2, 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

Algebra I

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

6x - y = -14

-2x + y = 6

Step 2: Solve for x

Elimination

  1. Combine 2 equations:                    4x = -8
  2. Divide 4 on both sides:                   x = -2

Step 3: Solve for y

  1. Define equation:                    -2x + y = 6
  2. Substitute in x:                       -2(-2) + y = 6
  3. Multiply:                                  4 + y = 6
  4. Isolate y:                                 y = 2
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