Answer & Step-by-step explanation:
To start the question, you could set up an equation to explain that -7 is being moved x units to -3
-7 + x = -3
Next you have to find x
-7 + x - (-7) = -3 - (-7)
x = 4
Now you substitute x for 4 in the original equation
-7 + 4 = -3
Hope this helped!!!