awsomelife123
29.04.2021 •
Mathematics
-4x+y=6 y=7x-6 what the answer in substatution
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Ответ:
-4x = 12 <=>
x = -3
=> y = 7(-3) - 6 <=>
y = -21 - 6 <=>
y = -27
Ответ:
each student gets 2
how many 2's are in 230
230/2=115
there are 115 students