SOLUTION: The measure of an angle is 20 less than 3 times its supplement. Find the measure of the angle

Question 442524: The measure of an angle is 20 less than 3 times its supplement. Find the measure of the angle
Answer by swincher4391(1107) (Show Source): You can put this solution on YOUR website!
Let's call this angle x. The supplement of x is 180-x by definition.
3*(180-x) - 20 = x
540 - 3x - 20 = x
520 = 4x
x= 130
Let's check this:
If x is 130, then the supplement of x is 180-130 = 50.
Three times the supplement of x is 3*50 = 150.
And 20 less than that is 150-20 = 130.
So the angle is .

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