Question

(6)-4-{+2+5-3-1-1+7)] +2}

(7) 10-{-2+[+1t (+7-3)-2]+6}

(8)-{-2-[-3-(-5)+1]}

(9)-20-{-4-[-8+(+12-6-2)+2+3]}

(10) {[(- 50-10) +11 +19] +20} + 10

Podem me ajudar ...
preciso dos calculos :​

Answer 1

Resposta:

6-> -15

6-> -157-> +4

6-> -157-> +48-> +5

6-> -157-> +48-> +59-> -15

10-> 0

Explicação passo-a-passo:

(6)

-4-(+2+5-3-1-1+7+2)

-4-(+11)

-4+(-11)

-15

(7)

10-{-2+[+1×(+7-3)-2]+6}

10-{-2+[+1×(+4)-2]+6}

10-{-2+[+4-2]+6}

10-[-2+2+6]

10-(+6)

10+(-6)

+4

(8)

-{-2-[-3-(-5)+1]}

-{-2-[-3+(+5)+1]}

-[-2-(+3)]

-[-2+(-3)]

-(-5)

+5

(9)

-20-{-4-[-8+(+12-6-2)+2+3]}

-20-{-4-[-8+(+4)+2+3]}

-20-[-4-(+1)]

-20-[-4+(-1)]

-20-(-5)

-20+(+5)

-15

(10)

{[(-50-10)+11+19]+20}+10

{[-60+11+19]+20}+10

-30+20+10

0