Step-by-step explanation:
the answer is in the above image
6
36 inches of rope will be left because 6*8 is 48 and you subtract 48 from 84 to get 36.
The system of equations are:
2x − 4y = 6
−3x + 3y = 9
To eliminate x, you should:
1. multiply first equation with 3
2. multiply second equation with 2
3. add the new equations you got
So your answer is A.