An equation and the steps to solve it are shown below:
7x - 1/2 (8x + 4) = 6
step 1: 7x - 4x - 2 = 6
step 2: 3x - 2 = 6
step 3: 3x - 2 + 2 = 6
step 4: 3x = 6
step 5: x = 2
which step was the error made and why? (1 point)
select one:
a. step 1, because incorrect signs have been used
b. step 2, because the terms have been added incorrectly
c. step 3, because a number has been added only to one side of the equation
d. no error was made