Question

Could you help me solve this Algebra 2 problem?
What is the solution of the following system?
3x + 3y = 10
-9x - 9y = -30
Any help would be very much appreciated!

Answer 1

multiply first eq by 3 and add the second one.

Answer 2

I thought of that but x and y both cancel. I didn't know if that was the right way to do it. I would just be left with -20. So would that be right?

Answer 3

hint check the slope of two lines

Answer 4

@CaveDucks can you proceed?

Answer 5

Hmmm.. I don't know how to do this one at all really :/

Answer 6

just observe the two equations carefully.
both are actually the same line

Answer 7

Ohhh I see! So how would I write that out?

Answer 8

write what?
you now know the answer right?

Answer 9

Well I don't have a clear answer, but I do have to write it step by step

Answer 10

both the lines are exactly the same so you will have infinite solutions

Answer 11

Ohhh okay! Thank you so much! :)