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3w-1w=10-2
2w=8/2
w=4
3s+1=1s+5
3s-1s=5-1
2s=4/2
s=2
3w-1w=2-10
2w=-8 /÷ 2
w=-4
3s+1=1s+5
3s-1s=1-5
2s=-4 /÷ 2
s=-2
3w - 1w = 10 - 2
2w = 8 / : 2
w = 4
-----------------------
3s+1=1s+5
3s - 1s = 5-1
2s = 4 / :2
s= 2
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Dla mnie to powtórzeine przed sprawdzianem :)