September 2018 2 21 Report
Uprość wyrazenia algebraiczne

a)-7+3y+9+2y
b)x-3x+2-2x-7
c)-5x+4y-y-7x-9y
d)4x+5-x-4+x-3x
e)0,5a-2a+9-0,5a-11,5
f)-14k+9k-13+k+3+4k
g)-3k+2m+5m-7+k-m
h)2x-4+3x-2
i)x-3y-2x+6y
j)2y-5-3y-4-8y+9
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