Hi please help which one is it

don't do this "just for points" i need the correct answer

you can add to eliminate the x

Step-by-step explanation:

because two x values have the same coefficient, and also the first equation is already negative so by adding them you can eliminate the x variable, then you can find the value of y.

Hope that helps.

God bless.

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,