Solve the Systems of Equation using Substitution y=x-4

4x - 6y=-16​

x=20 and y=16

Step-by-step explanation:

4x - 6y= -16

since y=x -4, we substitute it in place of "y"

Then, 4x - 6(x-4) = -16

4x - 6x + 24 = -16

-2x+24= -16

-2x= -16-24

-2x= -40

Divide both sides by -2 then,

x=20

once we get the value of "x" we substitute in place of "y=x-4"

y=20-4

y=16

answer:

the position of equilibrium will shift to the left.

step-by-step explanation:

the general equation for the dissociation of a weak base is

b + h₂o   ⇌   bh⁺ + oh⁻

according to le châtelier's principle, when a stress is applied to a system at equilibrium, the system will respond in a way that tends to relieve the stress.

if you apply a stress by adding more bh⁺ or oh⁻,   the system will respond by moving in a direction that gets rid of the added ions.

the position of equilibrium will shift to the left, forming more of the undissociated base.