Question

solve using elimination method
14x +18y =-54
-4x -14y =42

Answer 1

Multiplying the first equation by 2, we get 28x + 36y = - 108
Multiplying the second equation by 7, we get 28x - 98y = 294.

Now solving these two equations :
Adding them both we get :
28x - 28x + 36y - 98y = -108 + 294

-62y = 186

Therefore y = -186/ 62
Which is -3.
Hence the answer is -3.

Answer 2

thanks jas9420

Answer 3

You're welcome. =]