Question

42 – 20 – (−7) + 17 − (+18)​

Answer 1

step by step explanation

=42-20-(-7)+17-(+18)

=22+7+17-(+18)

=29+17-18

=46-18

=28

awnser 28

Answer 2

SOLUTION

TO EVALUATE

42 – 20 – ( − 7 ) + 17 − ( + 18 )

EVALUATION

Here the given expression is

42 – 20 – ( − 7 ) + 17 − ( + 18 )

We simplify it as below

42 – 20 – ( − 7 ) + 17 − ( + 18 )

= 42 – 20 – ( − 7 ) + 17 − 18

= 42 – 20 – ( − 7 ) - 1

= 42 – 20 + 7 - 1

= 42 – 20 + 6

= 42 – 14

= 28

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