@karinasevostanova75

karinasevostanova75

5 - 9 классы

1) -2(1-x-3y)= 2)-2(-a+b-c)= 3)-2(25+a+4b)= 4)a(-b-5-6)= 5)-3(8+x-4y)= 6)2(-a-3b...
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