vrw28
10.02.2020 •
Mathematics
Substitution y = 5x and
6x - 2y = -4
Solved
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Ответ:
4a + b -5
= 4(4) + 3 - 5
= 16 +3 - 5
=14
second one 10
4a/(2b-c)
=4(5)/(2*4) - 6
=20/2
=10