Question

Calcule as Expressões
B) 10-[-2+(-1-7)+1-(-5-2-1+4)-4]

C)(6-8)-{4-[3-(10+8-3)-7]-35+(12-15]}=

Answer 1

b)10-[-2+(-1-7)+1-(-5-2-1+4)-4]

10-[-2+(-8)+1-(-4)-4]

10-[-2-8+1+4-4]

10-(-11)

10+11=21

c)(6-8)-{4-[3-(10+8-3)-7]-35+(12-15)]}

-2-{4-[3-15-7]-35+(-3)}

-2- {4-[3-15-7]-35-3}

-2-{4-(-29)-35-3}

-2-{4+29-35-3}

-2-5=-7