Question

evalute
a) 15-(-25)
b) 9+23-(-25) -40
c) -42-(-30 ) +(-50)
d) (-30+10) -(40-20)
pls solve step by step​

Answer 1

a ) 15 - ( - 25 )

15 + 25

50

b ) 9 + 23 - ( - 25 ) - 40

32 - ( - 25 ) - 40

32 + 25 - 40

57 - 40

17

c ) - 42 - ( - 30 ) + ( - 50 )

- 42 + 30 - 50

- 12 - 50

- 62

d ) ( - 30 + 10 ) - ( 40 - 20 )

- 20 - ( 40 - 20 )

- 20 - 20

- 40