A triangle is such that the largest angle is 12 times the smallest angle. The third angle is 20 less than the largest angle. Find the measure of each angle. (12-x)+ x+20-(12-x)=180.

Question

A triangle is such that the largest angle is 12 times the smallest angle. The third angle is 20 less than the largest angle. Find the measure of each angle. (12-x)+ x+20-(12-x)=180. 
 im having a difficult time setting up the equation

Steve · Answer

what's with the 12-x? "12 times" means 12* x + 12x + 12x-20 = 180 You seem to have a problem distinguishing between subtraction and multiplication.