Jeremy D. answered 05/02/19
Tutor
5
(24)
2 Masters Degrees, College Professor, Tutoring 5+ years
If we write this problem as an algebraic equation we get the following:
The product of 7 and number can be shown as 7x, with x as the unknown number. Then we just add 3 to that and set it all equal to -18. Now we solve it.
7x + 3 = -18
7x = -21
x = -3