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otez555 [7]
2 years ago
13

7 x 18 = 7 x (10 + _ )

Mathematics
1 answer:
krok68 [10]2 years ago
4 0

7

10

70

140

this is so easy

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Answer:

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Step-by-step explanation:

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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
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Equality Properties

<u>Algebra I</u>

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Step-by-step explanation:

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

4x + 5y = -12

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<u>Step 2: Rewrite Systems</u>

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  1. Multiply everything by 2:                    -4x + 6y = -32

<u>Step 3: Redefine Systems</u>

4x + 5y = -12

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<u>Step 4: Solve for </u><em><u>y</u></em>

<em>Elimination</em>

  1. Combine 2 equations:                    11y = -44
  2. Divide 17 on both sides:                  y = -4
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