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elisavetaaupova
@elisavetaaupova
July 2022
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пожалуйста решите тольок б)
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bbbapho
б)
ответ
:
–
10
в
)
ответ
:
0
2 votes
Thanks 1
elisavetaaupova
спасибо большое !!!!!
vitalina2018allo
Б) 7(2/7х - 3/14у) - 4(7/2х-3/8) = 2х - 1 1/2у - 14х + 1 1/2у = 2х - 14х - 1 1/2у + 1 1/2у = - 12х = -12 • 5/6 = -10
в) 2(4а - 0,5b) - (3a - 7b) = 8a - b - 3a + 7b = 8a - 3a - b + 7b = 5a + 6b = 5 • (-0,4) + 6 • 1/3 = - 2 + 2 = 0
1 votes
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Answers & Comments
б) ответ: –10
в) ответ: 0
в) 2(4а - 0,5b) - (3a - 7b) = 8a - b - 3a + 7b = 8a - 3a - b + 7b = 5a + 6b = 5 • (-0,4) + 6 • 1/3 = - 2 + 2 = 0