Question

me ajudem a resolver iso 13+8−[1−(−15+3−12)+8]−[(12−4):8]=−12−(8:8)

Answer 1

13+8 = 21

21- [ 1-(-24)+8]- [(8)÷8] = -12 -(8:8)

21-[1+24+8] - 1 = -12-1

21- 33-1 = -13

13= -13

ou seja, 13 é diferente de -13