Answer:
x = 9
Step-by-step explanation:
Sum of all angles of a triangle = 180
63 + 7x + 6x = 180
63 + 13x =180
13x = 180 - 63
13x = 117
x = 117/13
x = 9
You add up 1+1+1+1+2 and you get 6. You then subtract 6 by 200 and your answer is -194
First we simplify, like this:
So the answer is 7^10<span>
Hope this helped! c:</span>