То что под номером В. Created by rozont. matematika-ru

То что под номером В...

jekadva 0,8*(3,2x-23,9)=-2,4*(5,8x-40,1)
2,56x - 19,12 = -13,92x + 96,24
2,56x + 13,92x = 96,24 + 19,12
16,48x = 115,36
x = 7

2 votes Thanks 1

carrot4 0,8 × (3,2x - 23,9) = -2,4 × (5,8x - 40,1)
2,56x - 19,12 = -13,92x + 96,24
2,56x + 13,92x = 19,12 + 96,24
16,48x = 115,36
x = 115,36 ÷ 16,48
x = 11536 ÷ 1648
x = 7
Ответ: x = 7.

1 votes Thanks 1

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