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GuDViN [60]
3 years ago
9

Katrina is asked to simplify the expression Negative 3 a minus 4 b minus 2 (5 a minus 7 b).

Mathematics
2 answers:
Agata [3.3K]3 years ago
5 0

Answer:

C

Step-by-step explanation:

<u><em>I have notes on this!</em></u>

nekit [7.7K]3 years ago
4 0

Answer:

Distributive property

Step-by-step explanation:

Distributive property allows you to multiply a(b+c) as ab + ac.

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Evaluate 12x−3y when x=−14 and y=3
Amiraneli [1.4K]

12x - 3y

12(-14) - 3(3)

-168 + 9

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What is the answer to this ? PLEASE HELP I HAVE 3 minutes
inn [45]

Answer:

(2, 4)

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

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality

<u>Algebra I</u>

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

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

y = 2x

x = -y + 6

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

<em>Substitution</em>

  1. Substitute in <em>x</em>:                     y = 2(-y + 6)
  2. Distribute 2:                         y = -2y + 12
  3. Isolate <em>y</em> terms:                    3y = 12
  4. Isolate <em>y</em>:                               y = 4

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

  1. Define equation:                    x = -y + 6
  2. Substitute in <em>y</em>:                       x = -4 + 6
  3. Add:                                        x = 2
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3 years ago
The image shows the linear graph for a family that hired a babysitter for a day. The family gave the babysitter some money up fr
AleksandrR [38]

Answer:

I think it's A and C

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