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aysarus955

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1. Решите уравнения 4*(5x+2)=10*(2x-3)+15 0.2*(7-2x)=2.3-0.3*(x-6)...
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1. Раскройте скобки - 3 + (a + b + c + d); - 7 + (- a – b – c – d); -12 • (-2a...
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