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Over [174]
3 years ago
13

Some please help me with these two

Mathematics
1 answer:
Gnom [1K]3 years ago
8 0

Answer: x=5, angle 1 = 140 degrees, angle 2 = 40 degrees, angle 3 = 65 degrees

Step-by-step explanation:

1)

19x-18=(7x+1)+(10x-9)

19x-18=17x-8

2x=10

x=5

2)

angle 1 = 60+80

angle 2= 180-(60+80) or 180-angle 1

angle 3 = 180 - (180-105) - angle 2 = 105 - angle 2

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