Question

If x means -, - means x # means + and + means - , then (4 – 15 = 12) 8 + 9 = ?​

Answer 1

Answer:

Brother what does = sign mean here

Answer 2

Given,

x means -, - means x, # means +, and + means -

To find,

The value of  f(x) = (4 – 15 # 12) x 8 + 9

Solution,

The simplified value of f(x) is 55.

We can simply solve the mathematical problem by the following procedure.

We know that in the language according to this question, x means -, - means x, # means +, and + means -. Thus, we must simplify the given equation according to the given language.

Thus,

f(x) = (4 – 15 # 12) x 8 + 9

According to the language given in the question;

f(x) = (4 x 15 + 12) - 8 - 9

Simplifying f(x) by BODMAS;

     = ( 60 + 12) - 8 - 9

     = ( 72) - 8 - 9

     = 72 - 17

     = 55

Thus,

The simplified value of f(x) is 55.