December 2021 2 5 Report
Упростите выражение: 1) 12×а×5×2; 2) 4b×25×7; 3) 15c×9×4 4) 9x+7x+3x; 5) 15y-6y+8y; 6) 52x-16y+9x; 7) 8(x+6)-28; 8) 7 (2x+3)-10x; 9) 4(9x+7)-26x. ПЖ РЕБЯТА! !!!!!!!!!! А ТО МАМА ЗАРУГАЕТ ЕСЛИ НЕ СДЕЛАЮ!!!
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