Question

If a +b=50 , a - b= 30 and a =18 them find b

Answer 1

Answer:

if a= 18 then b= 30- 18= 12

Answer 2

$\huge\boxed{\fcolorbox{white}{pink}{Answer:⇢}}$

⠀⠀⠀⠀

Given :-

a + b = 50

a - b = 30

a = 18

⠀⠀⠀⠀

To Find :-

b = ?? ⠀⠀⠀

⠀⠀⠀⠀

Solution :-

⠀⠀⠀⠀

For Addition :-

∴ a + b = 50

∴ 18 + b = 50

∴ b = 50 - 18

∴ b = 32

For Subtraction :-

∴ a - b = 30

∴ 18 - b = 30

∴ - b = 30 - 18

∴ - b = 12

___________________________