The angle of a triangle are (x+15), (2x-20) and 2x. what are the actual angle measures of the triangle?

Okay so here's what you do,

Add them,



Collect the like terms,

2x + x +2x = 5x



Calculate the sum / difference,

15 - 20 = - 5



Move constant to the right side and change its sign,



Calculate by adding,



Divide both sides of the equation by 5,







We're not done yet, x=37, now let's find out the measurements of each side.

To do this, simply substitute all expressions with x being 37,





Remember, a triangle always has 180° and do the measurements add up to 180??



Yes, they do meaning it's correct & reasonable!

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I hope that helps you out!!

Any more questions, please just ask me!!

~ Zoey