Firstly, expand the equation.

Next, move the variable x to the left and all the constant to the right.

Then, solve for x.
Discount of 5
6% tax
100-5=95
100+6=106
12*0.95*1.06=12.084
the price is $12.08
Number 7 is C, im not sure about 6 though
Answer: C x=-4 and -10
Step-by-step explanation: