November 2018 1 9 Report

Podane wyrażenia doprowadź do najprostrzej postaci,a następnie zredukuj. (6x+2y)-2*(3x-4y+12)= . . .

2p-4r-5s+(28r-14p+35s):7+18= . . .

7*(a+4-5c)-2*(9-3a+c)-13a-10= . .

-2*(3x+7y-5z+4)+5*[3*(x-2y)-6*(x-y+1)]-102+38= . . .


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