9-3(y-2)=3-3y true or false

false

distribute this and keep solving using PEMDAS:

9-3(y-2)=3-3y

= 9 - 3y + 6 = 3 - 3y

- - > 15 - 3y = 3 - 3y

this is false since when you solve you do not end up with the exact same expression.

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,