Write an equation to represent the
relationship “a number decreased by
11 is equal to -18.” Then solve the
equation

Respuesta :

Answer:  x-11=18

x-11=18    x=7

Step-by-step explanation:

x   -   11   =    18                       YOUR GOAL IS TO ISOLATE THE VARIABLE x.  

    -   11     -   11                        To do that you must subtract 11. Remember:                                                                                                              

18-11 = 7                              What you do to one side you must do to the other.    

x=7