oblicz:-12+5-(-1)
15-(-4)-(-1)-(-20)
25-(-1)+0+(-26)
1) -12+5-(-1) = -7 + 1 = -6
2) 15-(-4)-(-1)-(-20) = 15 + 4 + 1 + 20 = 40
3) 25-(-1)+0+(-26) = 25 + 1 + 0 -26 = 0
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1) -12+5-(-1) = -7 + 1 = -6
2) 15-(-4)-(-1)-(-20) = 15 + 4 + 1 + 20 = 40
3) 25-(-1)+0+(-26) = 25 + 1 + 0 -26 = 0