Answer:
Required equation is x + 2y = -1
Step-by-step explanation:
Given Solution: ( 0.6 , -0.8 )
We have to system of equation whose solution is given.
Option 1).
From Solution,
x = 0.6 and y = -0.8
equations: x + 2y = -1
LHS = x + 2y = 0.6 + 2 × (-0.8) = 0.6 - 1.6 = -1
RHS = -1
LHS = RHS
So, This option is correct.
Option 2).
From Solution,
x = 0.6 and y = -0.8
equations: 3x - y = -1
LHS = 3x - y = 3 × (0.6) + (-0.8) = 2.4 - 0.8 = 1.6
RHS = -1
LHS ≠ RHS
So, This option is not correct.
Therefore, Required equation is x + 2y = -1
