Welcome to Westonci.ca, where finding answers to your questions is made simple by our community of experts. Experience the ease of finding reliable answers to your questions from a vast community of knowledgeable experts. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

3x+3=3y
2x-6y=2

(Solving Systems Of Linear Equations By Elimination)


Sagot :

3x+3=3y ⇒ 3y-3x=3 ⇒3(y-x)=3 ⇒ y-x=1
2x-6y=2 ⇒ 2(x-3y)=2 ⇒ x-3y=1

We must to collect two equations.
x's is lost;
y-3y=2
-2y=2
y=-1   ; x-3.(-1)=1  
x=-2

Answer is (-2,-1)