3x+3=3y

2x-6y=2

(Solving Systems Of Linear Equations By Elimination)

Question

Mathematics

Hoffman

19 July, 16:40

3x+3=3y

2x-6y=2

(Solving Systems Of Linear Equations By Elimination)

+5

Answers (1)

Know the Answer?

Valentina Terry · Answer 1

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)

3x+3=3y2x-6y=2(Solving Systems Of Linear Equations By Elimination)

3x+3=3y

2x-6y=2

(Solving Systems Of Linear Equations By Elimination)