Question

Please help me find the equation xx

Answer 1

9514 1404 393

Answer:

• (2x-10) +x +(x+10) = 180
• x = 45
• (2x-10)° = 80°
• (x+10)° = 55°
• x° = 45°

Step-by-step explanation:

The equation is an expression of the fact that the sum of the angles in a triangle is 180°.

  (2x -10)° +x° +(x +10)° = 180°

For the purposes of the answer box, I'd leave off the degree symbol:

  (2x -10) +x +(x +10) = 180

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This simplifies to ...

  4x = 180

  x = 45

Then the angles (CW from top) are ...

  (2·45 -10) = 80°

  (45 +10)° = 55°

  (45)° = 45°