Question

Resolva as expressões:

a) + 10 – 7 – 5 + 4 – 9 = b) – 13 + 4 – 1 + 2 + 8 – 5 c) – 2 – 5 + 7 + 4 – 10 + 6
URGENTE ​

Answer 1

Resposta:

$A)+10-7-5+4-9=\\+3-5+4-9=\\-2+4-9=\\2-9=-7$

$B) -13+4+2+8-5=\\-9+2+8-5=\\-9+10-5=\\1-5=-4$

$C) -2-5+7+4-10+6=\\-7+7+10-10=0$

Espero ter ajudado!