August 2018 3 14 Report
Wykonaj działania i oblicz wartość liczbową wyrażenia.
a). 4(y-3)-3(x+1) dla x=4, y=2
b). 3(2b+1)-4(a-2) dla a=7, b=1
c). 9(x-7y)-(5y-2x)+20y dla x=0,5 y=0,3
d).(5x+7y)-8(y+1)+3(x-y) dla x=½ y=¼
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