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Darina [25.2K]
3 years ago
12

Find y: A) 15 B) 13 C) 16 D) 17

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
3 0

Answer:

y = 17

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>

4y + (3y - 10) + (4y + 3) = 180

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

  1. Combine like terms:                    11y - 7 = 180
  2. Isolate <em>y</em> term:                              11y = 187
  3. Isolate <em>y</em>:                                       y = 17
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4x − 5 = −17 what is x
Alina [70]

Answer:

<h2>x = 3</h2>

Step-by-step explanation:

<h3>4x − 5 = −17</h3>

<u>Add 5 to both sides of the equation</u>

That's

<h3>4x + 5 - 5  =  - 17 + 5 \\ 4x =  - 12</h3>

<u>Divide both sides by 4</u>

<h3>\frac{4x}{4}   =   - \frac{12}{4}  \\</h3>

We have the final answer as

<h3>x = 3 \\</h3>

Hope this helps you

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Step-by-step explanation:

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