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Mathematics 15 Online
OpenStudy (anonymous):

Sixth Grade Ques So please help :)

OpenStudy (anonymous):

|dw:1431370907418:dw|

OpenStudy (anonymous):

solve for x

OpenStudy (skullpatrol):

use the idea of "balance"

OpenStudy (anonymous):

i dont know

OpenStudy (skullpatrol):

whatever you do to one side of the equation, you must do the same to the other

OpenStudy (anonymous):

let me draw something. just a second

OpenStudy (skullpatrol):

your goal is to isolate the variable on one side :)

OpenStudy (anonymous):

|dw:1431371155359:dw|

OpenStudy (anonymous):

is that right ?

OpenStudy (anonymous):

yep continue

OpenStudy (anonymous):

what to do after that?

OpenStudy (skullpatrol):

multiply both sides by 3

OpenStudy (anonymous):

cant we do 7/15 - 1 first ?

OpenStudy (anonymous):

yep do that first

OpenStudy (anonymous):

since hte denominator is not equal on LHS make them equal

OpenStudy (anonymous):

the*

OpenStudy (anonymous):

|dw:1431371339975:dw|

OpenStudy (anonymous):

*rhs

OpenStudy (anonymous):

yeah so u need 15

OpenStudy (anonymous):

multiply and divide by 15

OpenStudy (anonymous):

|dw:1431371405013:dw|

OpenStudy (anonymous):

correct now 7-15=?

OpenStudy (anonymous):

-8

OpenStudy (anonymous):

superb!

OpenStudy (anonymous):

now u can solve :)

OpenStudy (anonymous):

|dw:1431371531330:dw|

OpenStudy (anonymous):

the denominator?

OpenStudy (anonymous):

of rhs?

OpenStudy (anonymous):

-8/1 ?

OpenStudy (anonymous):

nope

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