Oblicz. -12+(-6)-(-9)+34=........................................
-54+(-76)-(-45)+12=..................................
(-23)-(-24+41)-(-15)=..................................
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-12+(-6)-(-9)+34= -12 - 6 + 9 + 34 = -18 + 9 + 34 = -9 + 34 = 25
-54+(-76)-(-45)+12= - 130 + 45 + 12 = -85 + 12 = - 73
(-23)-(-24+41)-(-15)= -23 - 17 + 15 = - 40 + 15 = - 25
-18+9+34=-9+34=25
-130+45+12=-130+57=-73
-23-17+15=-40+15=-25