Answer:
x=25
Step-by-step explanation:
a right angle is 90
90 minus 65 is 25
the answer is 3/5
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18
12/14 = 6/7
6/7 = 12/14 = 18/21
2x-30 + x + 40 = 180
3x + 10 = 180
3x = 170
x = 56
