Question

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

Answer 1

use cancelation method :P by multiplying the first equation by (3) you'll find out that everything cancels out ;)

Answer 2

so there is no solution

Answer 3

Ah, yeah. . I usually get lost in the steps so. x3

Answer 4

Also, I've never heard of the Cancellation Method, only Elimination and Substitution.