Question

Calcule expressões
a) 14:2+(13-(4.2+1))
b) (9.(12-4)+2.(8-6)).2-20
c) 50-3.(7+8:4-(20-3.(9-5))

Por favor me ajudem !!

Answer 1

A) 7 [13-(8+1)] = 7 + 4 = 11
B) 9.8 + 2.2.(-18) = 72-72 =0
C) 50 -3[7+2 -(17.4)] = 50 -3(9 -68) = 50 - 3.59 = 50 -177 = -127