Answer:
B-
-5x + 4y = 8
-x + 5y = 10
Step-by-step explanation:
x+ 4y = 8, we'll call this A
4x + y = 2, we'll call this B
To create the equivalent system, you can mulitply or divide by a coeffecient, to get a pure solution. If you add or subtract, the system is unchanged.
We are adding A to B
x + 4y = 8 + 4x + y = 2
5x + 5y = 10, we'll call this C.
The new equation is the basis for the equivalent system, where C replaces B
