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blsea [12.9K]
3 years ago
15

Solve each system of equations by adding, subtracting, or multiplying.

Mathematics
1 answer:
professor190 [17]3 years ago
3 0
Solve each system of equations by adding, subtracting, or multiplying.

1) 3x - 3y = -9
2x + y = -3

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Answer:

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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

Step-by-step explanation:

<u>Step 1: Define</u>

0 = 4x + 4

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

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  2. Divide 4 on both sides:                        -1 = x
  3. Rewrite:                                                 x = -1
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