Question

I dont understand , Help ?
What is the solution of the following system?
3x+3y=10
-9x-9y=-30

Answer 1

ok.. so multiply the 1st equation by 3 and add the new equation to the 2nd equation.

What do you get...?

Answer 2

Im confused. @campbell_st

Answer 3

ok divide the 2nd equation by -3 you get

3x + 3y = 10

so what do you notice....

Answer 4

Oh they end up as the same equation at the first one.

Answer 5

correct... so the 2nd equation is just a multiple of the 1st... so they are the same line....

now you can comment on the solutions.

Answer 6

Thank you :)