Question

calculo:[50 - (20 : 2) x 3] + {[15 : 5 x ( 1 + 3²)] x 2}

Answer 1

Explicação passo-a-passo:

[50 - (20: 2) ×3] + { [ 15:5×( 1+3*) ] ×2}=

[50 - 10 ×3] + { [ 15:5× ( 1+9 ) ] ×2}=

[50 - 10 ×3] + { [ 15:5× 10 ] ×2}=

[50 - 30] + { [ 3× 10 ] ×2}=

20+ {30 ×2}=

20+ 60=

80