Odpowiedź :
4.
[tex]a) \ \ -48:(4+2) = -48:6 = -8\\\\b) \ \ 8+(-8)\cdot7 = 8 - 56 = -48\\\\c) \ \ 8\cdot(-7) + (-63):(-9) = -56+7 = -49[/tex]
4.
[tex]a) \ \ -48:(4+2) = -48:6 = -8\\\\b) \ \ 8+(-8)\cdot7 = 8 - 56 = -48\\\\c) \ \ 8\cdot(-7) + (-63):(-9) = -56+7 = -49[/tex]