Six times a number plus 3 equals three times the same number minus nine. What is the number? Hint: Let x= a number. Create the expression for
the other number based on the information
in the word problem.

x = -4

Step-by-step explanation:

Six times a number plus 3 equals three times the same number minus

nine. This equation is 6x + 3 = 3x -9. Next, solve this equation and you get -4. Plug in -4 for x and you should get -21 on both sides.