sol: measuere angle A plus measure angle B plus measure angle c plus measure angle d equals 360. 60+x+3x+2x equal

To solve the equation 60 + x + 3x + 2x = 360, where x represents an unknown angle:

Step 1: Combine like terms
Combine the terms with x: x + 3x + 2x = 6x
The equation now becomes: 60 + 6x = 360

Step 2: Solve for x
Subtract 60 from both sides of the equation: 60 + 6x - 60 = 360 - 60
This simplifies to: 6x = 300

Divide both sides of the equation by 6 to isolate x:
6x / 6 = 300 / 6
This simplifies to: x = 50

Therefore, the value of x is 50.