September 2021 0 4 Report
Докажите тождество: 1) -0,2(4b - 9) + 1,4b = 0,6b + 1,8
2) (5а - 3b) - (4 + 5а - 3b) = - 4
3) 5 (0,4х - 0,3) + (0,8 - 0,6х) = 1,4х - 0,7
4) 1/9 (3у - 27) - 2 (1/12у - 1,5) = 1/6у
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