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Novay_Z [31]
3 years ago
14

Find X Coordinates are: 3x, 3x+10, 2x+10

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
8 0

Answer:

D. 20

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

<u>Geometry</u>

  • All angles in a triangle add up to 180°

Step-by-step explanation:

<u>Step 1: Set Up Equation</u>

3x + 3x + 10 + 2x + 10 = 180

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

  1. Combine like terms:                    8x + 20 = 180
  2. Isolate <em>x</em> term:                              8x = 160
  3. Isolate <em>x</em>:                                       x = 20
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