How many solutions does the equation have, 2x – 7 + 19 = 6x – 4x + 12

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

Need this asap if anyone can i would be very grateful. if you could show workings that would really

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?