Question

{10+[15+(100-9•8):14]-20} me ajudem​

Answer 1

Explicação passo-a-passo:

${10+[15+(100-9.8):14]-20}=\\ \\ 10+[15+(100-72):14]-20=\\ \\ 10+[15+(28):14]-20=\\ \\ 10+[15+2]-20=\\ \\ 10+17-20=\\ \\ 27-20=7$