Question

Resolva as expressões

b) [5+35÷7+2×(15-9×1)]
c) 3×[(42-8×5)+(38-7×5)]
d) {[20-(15-6+4)]×12-10}
e) {3×50+[16+64÷116)×3]×2}​

Answer 1

Explicação passo a passo:

b)

[5+35÷7+2 * (15-9 * 1)]

35 : 5 =7

9 * 1 = 9

[ 5 + 7 + 2 * ( 15 -9 )] =

15 - 9 = 6

[5 + 7 + 2 * 6 ]

[ 5 + 7 + 12 ]

5 + 7 + 12 =24 >>>>>resposta

c)

3 * [(42-8 * 5)+(38-7 * 5)]

8 * 5 = 40

7 * 5 =35

3 * [ ( 42 - 40) + ( 38 - 35 ) ]

42 - 40 = 2

38 - 35 = 3

3 * 2 + 3 =

6 + 3 = 9 >>>>>>resposta

d)

{[20-(15-6+4)] * 12-10}

15 - 6 = 9

9 + 4 = 13

{ [ 20 - ( 13)] * 12 - 10 }

20 -13 = 7

{ 7 * 12 - 10 }

7 * 12 = 84

84 - 10 = 74 >>>>>>resposta