what is the solution to the following

3x + 3y = 10

-9x - 9y = -30

Question

what is the solution to the following

3x + 3y = 10

-9x - 9y = -30

kc_kennylau · Answer

-3*(1)=(2)
therefore infinitely many solutions

anonymous · Answer

3(3x+3y = 10)      gives 9x + 9y = 30
                                      -9x-9y=-30       we're eliminating here
                                              0 = 0
You have an infinite number of solutions that will work.

wolf1728 · Answer

The second equation is just the first equation multiplied by -3, hence they are the same equation and you'll have an infinite number of solutions.

sleepyjess · Answer

3x + 3y = 10
3x = -3y+10
$$x=\frac{ -3y+10 }{ 3 }$$Then substitute this into the 2nd equation