SOLUTION: three less than the product of a number and four is -67. find the number

Question 209846: three less than the product of a number and four is -67. find the number
Answer by tsuffern(3) (Show Source): You can put this solution on YOUR website!
three less than the product of a number and four is -67. find the number
Let x=unknown variable
The product of a number and four would be 4x (product meaning multiplication) you now need 3 less than 4x, which would be 4x-3. Is -67 means it equals -67. Equation is:
4x-3=-67
Now work the equation to isolate x on one side of the =. Start with adding 3 to both sides to get this 4x-3+3=-67+3. -3+3=0 so we now have 4x on the left. -67+3=-64. we now have -64 on the right.
4x=-64
Now divide both sides by 4. 4x/4=x, -64/4=-16 0r X=-16, now go back to original equation and substitute x with -16
4(-16)-3=-67
4(-16)=-64
-64-3=-67
True

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