Equations With Variables on Both Sides - By Request

This requested video looks at solving equations with variables on both sides. It includes four examples.

Category:

Education

Tags:

• education
• math
• mathematics
• equations
• solves
• variables
• both
• sides
• pre-algebra
• algebra

[noobwerd]

do you have a fractions version of this?

[mbrandl11]

@noobwerd

Search my videos for "solving & fractions" and I think you might find some helpful things to check out.

I hope that helps! :-)

[frostybearx]

What happens if the number cant divide?

So like what if was 3 = 25

What would you do?

[mbrandl11]

@frostybearx

Do you mean that there's no variable left? If that's the case, when we end up with something that's not true, like 3 = 25, then there is no solution. If you end up with something that is true, like 3 = 3, then it's an identity and all numbers will work.

I hope that helps! :-)

[SuperNickBowser]

@mbrandl11 What about -8(4=9x)=7(-2-11x)

[mbrandl11]

@SuperNickBowser Start by distributing to get rid of the parenthesis. -8(4 + 9x) = 7(-2 - 11x) -32 - 72x = -14 - 77x Then add 77x to both sides to get all the variables together on one side. -32 - 72x + 77x = -14 - 77x + 77x -32 + 5x = -14 Then add 32 to both sides. -32 + 32 + 5x = -14 + 32 5x = 18 Finally, divide by 5 on both sides to get: 5x/5 = 18/5 x = 18/5 or 5 3/5 I hope that helps! Keep working hard on your math! :-)

[superstarcity98]

I now know this...... YES! I better get an A for sure. x__x

[peterjgagnon]

Thanks for the help

[mbrandl11]

@gerardo95062

Start by distributing the -5 and the 2 through on the left and right respectively.

-35 - 5x + 15 = x + 2x - 4

Then combine like terms

-20 - 5x = 3x - 4

I bet you can take it from there! I hope that helps! Keep working hard! :-)

[gerardo95062]

Seriously I know this but I need help with this one: -35-5(x-3)=x+2(x-2)