Now, you need to "undo" TWO operations. Notice that the g was MULTIPLIED by 2, then 2 was SUBTRACTED from this, resulting in 126. You need to do the OPPOSITE operations, IN REVERSE ORDER to undo this situation and leave the g all alone.
First, add +2 to each side:
2g-2 +2 = 126+2
2g=128
Now, UNDO the multiplication by 2 by DIVIDING both sides by 2:
Check if you want to:
g + (g-2)= 126
64+(64-2)=126
64+62=126
It checks!
Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
Altamonte Springs Campus
