72 ? 27 ? 99
After interchanging the signs,
72 + 27 - 99
Apply the BODMAS Rule.
= 99 - 99 = 0
Given, 17 ? 12 $ 3
After interchanging the sign,
17 x 12 ÷ 3
Apply the BODMAS Rule
= 17 x 4 = 68
Given, 2 ? 7 ? 4
After interchanging the signs,
2 x 7 - 4
Apply the BODMAS Rule
2 x 7 - 4 = 14 - 4 = 10.
On interchanging signs 'x' to '-' and 2 to 3
(6 ÷ 3) - 2 = 0
? 2 - 2 = 0
? 0 = 0
On interchanging signs '+' to '÷' and 2 to 3
(2 + 4) ÷ 3 = 2
? 6 ÷ 3 = 2 ? 2 = 2
On interchanging '-' to '+' and 2 to 6
4 x 2 + 6 = 14
? 8 + 6 = 14
? 14 = 14
10
9 + 5 + 4 = 18 ÷ 9 + 16 = 18 = 18
After changing '+' = ÷ , '-' = x
'x' = '+' '÷' = -
the equation, 46 - 6 + 4 x 5 ÷ 3 = 71
CHS = 46 x 6 ÷ 4 + 5 - 3
= 276 ÷ 4 + 5 - 3
= 69 + 5 - 3
= 74 - 3 = 71 R.H.S.
After changing '+' and '-' , 8 and 7 the appropriate equation is,
6 + 8 x 2 - 7 = 0
L.H.S. = 6 - 7 x 2 + 8
6 - 14 + 8
14 - 14 = 0 = R.H.S.
25 ÷ 3 x 7 - 8 + 12 = 19.3
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