Sherry uses the steps below to solve the equation x+(-8)=3x+6
step 1 add 1 negative x-tile to both sides and create zero pairs
step 2 add 8 positive unit tiles to both sides and create zero pairs.
step 3 divide the 14 unit tiles evenly among the 2 x-tiles.
step 4 the solution is x = 7
what is sherry’s error?
a. in step 1, she should have added 3 negative x-tiles to both sides.
b. in step 2, she should have added 6 negative unit tiles to both sides.
c. in step 3, she did not divide the tiles evenly.
d. in step 4, she should have found the solution x= -1