Question

4x + y = 4

8x + y = 5
If (x,y) is the solution of the system of equations above, what is the value of
x?

Answer 1

if u substract the equations u get 4x = 1, therefore x = 1/4

Explanation:

(8x + y) - (4x + y) = 5 - 4

4x = 1

x = 1/4