Question

1.5x-6.5 for x=9 what is the value given for x

Answer 1

1.5x-6.5
Substitue 9 for x
1.5(9) - 6.5
Multiply 1.5 by 9
13.5 - 6.5
Subtract
Final Answer: 7

Answer 2

Hi there! ~

So lets get started with your equation.

• 1.5x - 6.5

Now it says; x=9

So now what we have to do is replace x for the given value of 9.

• 1.5x - 6.5
• 1.5 * 9 - 6.5

We took "x" and we replaced it by using multiplication. 

Another example for that is if we have x=2
4x
Then we would do 4 * 2 
2 being our orginal unknown numner of "x".
Makes sense?

Now our last step is to simply solve;

• 1.5 * 9 - 6.5

=7 (positive) 

~ Littlebird17