Question

Find the value of algebraic expression 7x - 3y + 4 if x = 12 and y = 3​

Answer 1

• We have to evaluate the above expression by using the given data.

              Given data:- $x=12,y=3.$

              To find:- Value of above expression $7x-3y+4.$

              Solution:-

• To solve the above equation we will follow the BODMAS rule.

• BODMAS is an order of mathematic operations.

• BODMAS rule is to be followed while solving expressions in mathematics. It stands for,

           B= bracket

           O= order of power or rules

           D= division

           M= multiplication

           A= addition

           S= subtraction

      Now put the value x and y in the given equation we get,

       $7x-3y+4\\=7(12)-3(3)+4\\=84-9+4\\=84-5\\=79$

     Hence we will get the value is $79.$

Answer 2

Answer:

7*12-3*3+4= 84-8+9

               =85