Question

Evaluate the expression for
a = 27, b = 26, c = 27, d = 23:
a+b-c-d

Answer 1

For this case we have the following expression:

`a + b-c-d`

We must evaluate the expression when:

`a = 27\\b = 26\\c = 27\\d = 23`

Substituting the values we have:

`a + b-c-d = 27 + 26-27-23`

Equal signs are added and the same signs are placed.

`a + b-c-d = + 53-50`

Different signs are subtracted and the sign of the major is placed:

`a + b-c-d = 53`

Finally we have to:

`a + b-c-d = 53`

Answer:
`a + b-c-d = 53`