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:$a + b-c-d = 53$