Which system of equations has a solution of approximately (0.6, –0.8)? (cont.)

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

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get