If you were to solve the following system by substitution, what would be the best variable to solve for and from what equation? 3x+6y=9 2x-10y=13 a) x in first equation b) x in second equation << i think its this just making sure c) y in first equation d) y in second equation

Question

Brynn Werner

Mathematics

24 February, 11:15

If you were to solve the following system by substitution, what would be the best variable to solve for and from what equation? 3x+6y=9 2x-10y=13 a) x in first equation b) x in second equation << i think its this just making sure c) y in first equation d) y in second equation

+2

Answers (2)

Know the Answer?

Urijah Haley · Answer 1

I think the correct answer is a) x in first equation

Look at the first equation:

3x + 6y = 9

You can divide both sides by 3 to get:

x + 2y = 3

And then solve it for x:

x = 3 - 2y

Now you can substitute x to 3-2y in the second equation

Next you will solve the second equation for y

Erin Fritz · Answer 2

The answer is x, in the first equation.