SOLUTION: find the value of each variable the diagram show a large X, on the left angle it is marked as 3x+8, the right angle is marked as 5x-20 and the bottom angle is marked as 5x+4y
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Question 1039570: find the value of each variable the diagram show a large X, on the left angle it is marked as 3x+8, the right angle is marked as 5x-20 and the bottom angle is marked as 5x+4y Answer by josgarithmetic(39630) (Show Source):
You can put this solution on YOUR website! Vertical angles are congruent. Your "left" and "right" angles are of equal measure, so 5x-20=3x+8.
The sum of ALL FOUR angles is 360 degrees, so....,
but what you need next is that your "bottom" angle and your "right" OR "left" angle are supplementary, meaning their sum is 180 degrees. TWO of them; NOT the three of them.
Arbitrarily picking one, , and you would have already solved for x.
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