September 2018 3 19 Report
1Uprośc wyrażenia algebraiczne:
a)-5x+4y-y-7x-9y
b)4x+5-x-4+x-3x
c)0,5a-2a+9-0,5a-11,5
d)-14k+9k-13+k+3+4k
e)-3k+2m+5m-7+k-m
f)2x-4=3x-2
g)x-3y-2x+6y
h)2y-5-3y-4-8y+9
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