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11.09.2020 •
Mathematics
What is 15x - 12y = 60
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Ответ:
15x-12y=60
15x-60-15y=0
15x-60=12y
12y=15x-60
divide both sides by 3
4y=5x-20
divide both sides by 4
y=5/4x-5
just put in values for x and get y so exg
(x,y)
0,-5
1,-15/4
2,-5/2
3,-5/4
4,0
and so on
Ответ:
100=65+5x
-65 -65
35=5x
35/5 5/5
7=x
Step-by-step explanation: