oblicz 20-2*(-2)-(-6)=???
Blagam szybko mam to na jutro.
* oznacza mnozenie ;P
20-2*(-2)-(-6)=20-(-4)+6=20+4+6=30
20-(-4)-(-6)=20+4-(-6)=24+6=30
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20-2*(-2)-(-6)=20-(-4)+6=20+4+6=30
20-(-4)-(-6)=20+4-(-6)=24+6=30