Question

Resolva a expressão numérica: 2 . (- 3) + 4 – 5 + 6 . (+ 9) : - 6 + 12 =

Answer 1

2.(-3)+4-5+6.9:(-6)+12
-6+4-5+54:(-6)+12
-2-5-9+12
-16+12
-4

Answer 2

2 . (- 3) + 4 – 5 + 6 . (+ 9) : - 6 + 12 =    

= - 6 + 4 – 5 + 6 . (+ 9) : - 6 + 12 =    

= - 6 + 4 – 5 + (+ 54) : - 6 + 12 =  

= - 6 + 4 – 5 + (- 9) + 12 =  

= - 6 + 4 – 5 – 9 + 12 =  

= – 2 – 5 – 9 + 12 =  

= – 7 – 9 + 12 =  

= – 16 + 12 =

= – 4