There are 2 angles whose measures add to 180. Their measures are MA equal 67 MB equals 2X plus 20. And m c equals x what is the measure of b
Let's solve for x by setting up the equation:
MA + MB + MC = 180
67 + (2x + 20) + x = 180
Combine like terms:
67 + 2x + 20 + x = 180
3x + 87 = 180
Subtract 87 from both sides:
3x = 93
Divide by 3:
x = 31
Now that we have the value of x, we can substitute it back into MB:
MB = 2x + 20 = 2(31) + 20 = 82
So, the measure of angle B is 82 degrees.