Q. 3.     Identify the operations (addition, subtraction, division, multiplication) in forming the following expressions and tell how the expressions have been formed.

             (a)   z+1,z-1,y+17,y-17

             (b)  17y,\frac{y}{17},5z

             (c)  2y+17,2y-17

             (d)  7m,-7m+3,-7m-3

Answers (1)
M mansi

             (a)   z+1\rightarrow addition                                         y-17\rightarrow subtraction

                  z-1\rightarrow subtraction                                     y+17\rightarrow addition

 

       

             (b)  17y\rightarrow multiplication                       \frac{y}{17}\rightarrow division

                  5z\rightarrow multiplication

              

             (c)  2y+17\rightarrow multiplication \, \, and\, \, \, addition

                  2y-17\rightarrow multiplication \, \, and\, \, \, subtraction

 

             (d)  7m\rightarrow multiplication

                  -7m+3\rightarrow multiplication\, \, and\, \, addition

                   -7m-3\rightarrow multiplication\, \, and\, \, subtraction

 

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