Question

Find the missing coordinate to complete the ordered pair.

Equation :
3x + 2y = -2
(-1, )

Answer 1

Use Substitution Method for solving this equation.

Answer 2

How?

Answer 3

We know the value of x coordinate. Do you agree ?

Answer 4

Yes. 3(-1) + 2y = -2
-3 + 2y = -2

And then? How could i determine the value of y coordinate?

Answer 5

-3 + 2y = -2

add +3 on both sides. What you get ?

Answer 6

-3 + 2y + 3 = -2 +3

2y =1

Now divide both side by 2

we get

y = 1/2 ................... Ans.

Hence required coordinate is (-1, 1/2)

Answer 7

Did you get the process ??

Answer 8

Yes :D Thank you very much!

Answer 9

:) you're welcome