Question

d) 28 - [21-(12 - 3)-7]-
e) (-2+3 (2-5):3]-[(3 - 5+2)-2(3-4)]=
8 - [6 - (-3+7) – 6]+4=​

Answer 1

28 - [21-(12 - 3)-7]

28 - [21-(9)-7]

28 - [21-9-7]

28 - [21-16]

28 - [5]

28 - 5

23

(-2+3 (2-5):3]-[(3 - 5+2)-2(3-4)]

(-2+3 (-3):3]-[(3 - 3)-2(-10)]

(-2+3(-1)]-[(0) +20 ]

(-5] - [+20 ]

-5 -20

-25

8 - [6 - (-3+7) – 6] +4

8 - [6 - (+4) – 6]+4

8 - [6 - 4 – 6]+4

8 - [ - 4 ]+4

8 + 4 + 4

16

Answer 2

Respuesta:

Explicación paso a paso:

28 - [21-(12 - 3)-7]

28 - [21-(9)-7]

28 - [21-9-7]

28 - [21-16]

28 - [5]

28 - 5

23

(-2+3 (2-5):3]-[(3 - 5+2)-2(3-4)]

(-2+3 (-3):3]-[(3 - 3)-2(-10)]

(-2+3(-1)]-[(0) +20 ]

(-5] - [+20 ]

-5 -20

-25

8 - [6 - (-3+7) – 6] +4

8 - [6 - (+4) – 6]+4

8 - [6 - 4 – 6]+4

8 - [ - 4 ]+4

8 + 4 + 4

16