Question

Evaluate 3 + (-h) + (-4) where h = -7
help pls

Answer 1

6

Explanation:

note that + (- ) = - ( that is equivalent to subtract )

- (- ) = + ( that is equivalent to add )

given

3 + (- h) + ( - 4) ← substitute h = - 7

= 3 + (- (- 7)) - 4

= 3 + (7) - 4

= 10 - 4

= 6