Question

Resolva as equações

a* 3·[5+3·(2-4)+1]:2

b* 2+3÷3+2(4-2)+3

c* 9÷3+2[7-21+3(9-3)+3]10

Answer 1

Resposta:

a) 3·[5+3·(2-4)+1]:2

3·[5+3·(-2)+1]:2

3·[5-6+1]:2

3·[0]:2

0

b) 2+3÷3+2(4-2)+3

2+3÷3+2(2)+3

2+1+4+3

10

c) 9÷3+2[7-21+3(9-3)+3]10

9÷3+2[7-21+3(6)+3]10

9÷3+2[7-21+18+3]10

9÷3+2[7]10

9÷3+140

3+140

143