1.5x-6.5 for x=9

what is the value given for x

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

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