January 2023 1 13 Report
1087.Раскройте скобки и приведите подобные слагаемые:
1) -4x - 8(9 - 2x);
4) -7(3 - 4c) + 14(0,5 + 2c);
5) 3(2,1х - у) – 2,8(2x – 3у);
3) 6(3x - 2) + 4(5x - 1); 6) 0,4(8t + 7) - 1,6(2t - 3).
2) ] (12 – 2, 1y) + 0,34;
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