wykonaj działania a wynik zapisz w najprostrzej postaci a) 2(3x-6)+5(x+4) = b) -3(2a+3)-4(2a-1)= c) 4(5m-3)-3(7m+5)+2(4-m)=

a) 2(3x-6)+5(x+4) =6x-12+5x+20=1x-8 b) -3(2a+3)-4(2a-1)=-6a+(-9)-8a+4=-14a+(-5) c) 4(5m-3)-3(7m+5)+2(4-m)= 20m-12-21m+15+8-2m=-3m-18

a) 2(3x-6)+5(x+4)= 6x - 12 + 5x + 20 =11x + 8 b)-3(2a+3)-4(2a-1) = -6a - 9 - 8a + 4 = -14a - 5 c) 4(5m-3)-3(7m+5)+2(4-m)= 20m-12-21m-15+8-2m = -3m -19