Question

Please help me whit this question

Answer 1

45

Explanation:

1. All angles in a triangle add up to 180°, so that means 30° + (2x + 10)° + 50° = 180.

2. With the equation we just formed, let's solve for x.

Step 1: Simplify both sides of the equation.

• 
  `30 + (2x + 10) + 50 = 180`
• 
  `(2x) + (30+10+50) = 180`
• 
  `2x + 90 = 180`

Step 2: Subtract 90 from both sides.

• 
  `2x + 90 - 90 = 180 - 90`
• 
  `2x = 90`

Step 3: Divide both sides by 2.

• 
  `(2x)/(2) = (90)/(2)`
• 
  `x = 45`

3. Now that we got the value of x, let's test it to see if it really is the correct answer.

• 
  `30 + (2*45+10) + 50 = 180`
• 
  `30 + (90 +10) + 50 = 180`
• 
  `30 + 100 + 50 = 180`
• 
  `130 + 50 =180`
• 
  `180 = 180`

Nice! This means that our answer is correct.

Therefore, x = 45.