gwendolyn is asked to solve the equation -43 – 3) = 20. she sh
-4(x - 3) = 20
- 4x + 12 = 20
- 4x = 32
x = -8
unfortunately, gwendolyn's work is flawed. explain the flaw in gwendolyns work

-4x + 12 = 20 is incorrect. she added 12 to 20 instead of subtracting 12 from both sides.

Step-by-step explanation:

It should have been, write problem

-4(x - 3) = 20

Use distributive property.

-4x + 12 = 20

subtract 12 from each side

-4x =8

divide each side by -4

x = -2

water molecules will move from the side of higher water concentration to the side of lower concentration until both solutions are isotonic. at this point, equilibrium is reached. in an isotonic solution, the flow of water in and out of the cell is happening at the same rate.

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