Question

3(x-3)=4(x+_3)

Answer 1

is that supposed to be a "minus" before the last "3"?

Like: 3(x - 3) = 4(x + (-3) )

Answer 2

no negative

Answer 3

what is the underscore symbol supposed to mean then?

Answer 4

i was trying to find the negative button but clicked wrong one

Answer 5

so it's a "negative 3" ?

Answer 6

yep

Answer 7

So, this is your equation:

3(x - 3) = 4(x + (-3) ) that last 3 is a "negative 3"
if you look at the extra parenthesis
I put around it...

First, you should multiply the parenthesis stuff out on each side of the equation:

3(x - 3) = 4(x + (-3) )
3x - (3)(3) = 4x + 4(-3)

Then simplify:
3x - 9 = 4x - 12

Answer 8

thanks for help

Answer 9

Glad to help... does it make sense?

Answer 10

You still have another couple steps after where I left it above... collecting the x terms and the number terms, then solving for x.

Answer 11

yes clearly

Answer 12

Yes, clearly, but if you know how to do it, that's great... if you don't, then I can help more. I wasn't wanting to do all your work for you... helps you learn it better if you try some of it as well.

Answer 13

please i m still confuse can u clear me

Answer 14

Just to put it all in one place, I will start over:

3(x - 3) = 4(x + (-3) )

3x - (3)(3) = 4x + 4(-3) <<--- multiplying out the parenthesis terms

3x - 9 = 4x - 12 <<<--- simplifying by multiplying 3*3=9 and 4*(-3) = -12

3x - 3x - 9 = 4x - 3x - 12 <<<--subtract 3x from both sides to get all
the x terms on the right side

-9 = x - 12 <<---- simplify by realizing 3x-3x=0 on the left
and 4x-3x = x on the right

-9 + 12 = x - 12 + 12 <<<--- add 12 to both sides to get all numbers on left

3 = x <<<--- simplify: -9+12=3 (left side) and -12+12=0 (right side)

x = 3 <<<--- switch left and right sides (not necessary, unless your teachers have told you that's required.

Answer 15

perfect thanks a lot or explanation