6x - 2y = 17 Step 1 of 2 : Determine the missing coordinate in the ordered pair (-2, ?) so that it will satisfy the given equation.

Question

what is the missing number

 

Answer 1

Well, if you take a look at the coordinates it's always (x, y).  That means that the value of -2 can be applied to x.  Just do that, 6(-2) - 2y = 17.  So the equation will look like this.

 

-12-2y = 17

 

Add 12 to both sides to negate -12 and you'll get this:

 

-2y = 29.

 

So what multiplied by -2 would equal 29?

 

Remember, if you multiply a negative with a negative you get a positive.