Solve 6 Linear Equations

[utprizzo]

How did you get -6? at 2:05 do you just add a negative to the number above the line

[daco54]

Thanks ,its very helpfull,

[gongli2000]

An example of where you HAVE to use the distributive law is:

x(x + 3) = x^2 + 6 Distribute x across (x+3) to get

x^2 + 3x = x^2 + 6

Subtract x^2 from both sides and then

3x = 6

so x = 2.

Use the distributive law only if you have to.

[gongli2000]

You don't need the distributive law to solve:

3(x+2) = -9

Just divide both sides by 3 to get

x + 2 = -3

Now subtract 2 from both sides and you get

x= -5

You're doing unnecessary calculations using the distributive law.

[system0slaven]

So is mathtv starting some youtube bussiness

Great stuff

Hope to see more

[RSKueffner]

Good job, obviously your understanding of mathematics goes beyond that of basic rhetoric. But in my experiences tutoring, and criticism from every professor I've come across, talk a bit slower/more clearly. (In response to the first gentleman)

[acire0027]

For whatever reason that you decided to put this up, I appreciated it. It makes understanding math easy by using visuals.