Question

Seven times a number is 9 less than the product of the number and -20. What is the number

Answer 1

7n = -20n - 9 --- add 20n to both sides
7n + 20n = -9
27n = -9 --- divide by 27
n = -9/27 reduce
n = - 1/3

Answer 2

Thank you @texaschic101