Give the equation using x as the variable and give the answer

Question

Three less than four times a number is equal to 15 more then seven times the number . What is the number

Answer 1

4x - 3 = 15 + 7x

7x -4x = -3-15

3x = -18

x = -18/3

x = -6 = the number

4(-6) -3 = 15 +7(-6)

-24 - 3 = 15 -42

-27 = -27