The sum of 6 and -3 times a number is -63. What is the number?

Question

The sum of 6 and -3 times a number is -63. What is the number?

Answer 1

The sum of 6 and -3 times a number is -63. What is the number?

“sum” means you add.

“-3 times a number” becomes -3x

“is” becomes the equal sign.

We can write this as:

6 + –3x = -63

Next, we solve for x using algebraic methods.

Subtract 6 on both sides:

6 + –3x = -63

-6             -6

________________

   -3x = -69



Divide by -3 on both sides

x = -69/-3

x = 23 Answer

Answer 2

-21

6+-3=3

-63/3=-21