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Pls answer my question​
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5 votes
Pls answer my question​

Pls answer my question​-example-1
User Cristiano Soleti
by
5.5k points

1 Answer

2 votes

Answer:

x = 20

General Formulas and Concepts:

Order of Operations: BPEMDAS

All angles in a triangle add up to 180°.

Step-by-step explanation:

Step 1: Set up equation

90 + 31 + 3x - 1 = 180

Step 2: Solve for x

  1. Combine like terms: 120 + 3x = 180
  2. Subtract 120 on both sides: 3x = 60
  3. Divide by 3 on both sides: x = 20
User WaitingForGuacamole
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