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-9*(-2)+9*3=18+27=45
. -3b+10y+y-4b=-7b+11y
-7*1+11*(-4)=-7-44=-51
12t+12w+4t-w=16t+11w
16*(-1)+11*2=-16+22=6
liczbowo 9(3-(-2))=9*5=45
lub 9*3-9*(-2)=27+18=45
2) -3b+10y+y-4b=-7b+11y
liczbowo -7*1 + 11* (-4) = -7-44=-51