For 2 weeks, gabrielle raised money by selling magazines. she raised $72 during the second week, which brought her total to $122. write and solve an equation to find how much gabrielle raised during the first week. show that your answer is reasonable.

To find out how much Gabrielle raised in the first week take the total ($122) and subtract what she made during the second week ($72).

This is how the equation would look: $122 - $72 = (Amount raised in the first week)  

Step-by-step explanation:

X = 50

Step-by-step explanation:

First you need to write the equation to find the first weeks amount.

X + 72 = 122

Now we need to get rid of 72 and you need to do the same for 122. and what  you get from subtracting 122 - 72 is your answer.

X + 72 = 122

    -72      -72

 X    =     50