josie17340
04.03.2021 •
Mathematics
Assuming 퐿1 ∥ 퐿2 , if the measure of ∠4 is 73°, what is the measure of ∠8? How do you know?
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Ответ:
(1,2)
Step-by-step explanation:
x+4y = 9
2x -4y= -6
Add the equations together
x+4y = 9
2x -4y= -6
3x +0y = 3
3x=3
Divide by 3
3x/3 = 3/3
x=1
Now find y
x+4y = 9
1 +4y =9
Subtract 1 from each side
4y = 8
Divide by 4
4y/4 = 8/4
y =2