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Mathematics 9 Online
OpenStudy (narissa):

help

OpenStudy (narissa):

OpenStudy (narissa):

@Data_LG2

OpenStudy (michele_laino):

we have to solve your equation, first

OpenStudy (narissa):

im on here because this is way too hard

OpenStudy (michele_laino):

If I apply the distributive property of multiplication over addition, at the left side, I can write this: \[4x + 2x - 6 = 8x + 12\]

OpenStudy (narissa):

k

OpenStudy (michele_laino):

now, at the left side, I sum similar terms, so I get: \[6x - 6 = 8x + 12\]

OpenStudy (narissa):

k thats a little easy

OpenStudy (michele_laino):

ok! Now I subtract \(6x\) from both sides, so I write this: \[6x - 6 - 6x = 8x + 12 - 6x\] please try to simplify

OpenStudy (narissa):

x-6=2x+12

OpenStudy (narissa):

??

OpenStudy (michele_laino):

right side is correct! left side: please keep in mind that \(6x-6x=0\) so we remain with \(-6\) only In other words we have: \[ - 6 = 2x + 12\]

OpenStudy (narissa):

ok

OpenStudy (narissa):

so its one?

OpenStudy (michele_laino):

Now I subtract 12 from both sides, so I can write this: \[ - 6 - 12 = 2x + 12 - 12\] please try to simplify

OpenStudy (narissa):

-6=2x

OpenStudy (michele_laino):

right side is correct! left side: -6-12=-18, so we have: \[ - 18 = 2x\]

OpenStudy (narissa):

ok its confusing sometimes

OpenStudy (michele_laino):

no worries! Is it clear now?

OpenStudy (narissa):

a little so theres only one solution?

OpenStudy (michele_laino):

yes!

OpenStudy (narissa):

ok thank u i have 2 others and 2 that need to be checked

OpenStudy (michele_laino):

if we divide both sides by \(2\) we get: \[\frac{{ - 18}}{2} = \frac{{2x}}{2}\]

OpenStudy (michele_laino):

ok!

OpenStudy (narissa):

can i tag u?

OpenStudy (michele_laino):

yes!

OpenStudy (narissa):

thanks sooo much

OpenStudy (michele_laino):

:)

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