A number y is always 13 less than a number x.

a) Write the formula connecting x and y.

b) Find y when x is

   i) 4

   ii) 16

Test yourself....

Challenge - Mathematics

A number y is always 13 less than a number x.

a) Write the formula connecting x and y.

b) Find y when x is

   i) 4

   ii) 16

 

 

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