4x-7=7x-61
-7=3x-61
54=3x
Answer
X=18
300.02 if you use the square root of 72
x-0.1x=36
where x is the original price
0.1x is the discount (10% of the original price)
36 is the price paid
x-0.1x=36
0.9x=36
----- ----
0.9 0.9
x=40
The original price is $40.00
