Question

Subtract:
(a) -58-(-55)
(b) 40-(-42)​

Answer 1

Answer:

a) -3

b) 82

Step-by-step explanation:

a) -58-(-55)

= -58+55

= -3

b)40-(-42)

= 40+42

=82

Main concept here is

-(-x) = +x

Bracket stands for multiplication

Basically, negative sign multiplied with another negative sign, it becomes positive sign!

Answer 2

Step-by-step explanation:

$- 58 - ( - 55) \: = \: - 58 + 55 = \: - 3$

CONCEPT :-

" (-ve & -ve makes +vr & answer is given in sign of bigger value) "

$40 - ( - 42) \: = \: 40 + 42 = 82$

I hope u understood

plz mark brainiest if u got the ans & concept.