Mathematics
10 Online
mariah16:
-7(3x-4)=133
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mariah16:
ok so this how u do it
NoLuvRoss:
X=-5
cookieoreo11:
thank you
NoLuvRoss:
np
mariah16:
|dw:1621533066777:dw|
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mariah16:
hope u can read it
cookieoreo11:
dang foo so its -5 right ?
mariah16:
yes
mariah16:
105 divided by -21 =-5
mariah16:
bc u divied -21 on both sides
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cookieoreo11:
what about number 2
mariah16:
and -21 and -21 cancel out
mariah16:
i gotch on number 2
cookieoreo11:
ight
cookieoreo11:
number 2 is
4 (3x + 7) = 88
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mariah16:
|dw:1621533592211:dw|
cookieoreo11:
x = 5?
mariah16:
yes
mariah16:
60 divided by 12 = 5
mariah16:
so x =5
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cookieoreo11:
ight number 3 is 7 ( - 4x + 3) = -91
mariah16:
i havnet did number 3 yet 0-0
cookieoreo11:
yikes
mariah16:
ok wait
cookieoreo11:
ight
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bivibes:
nocie
mariah16:
how u do number 3 idk
cookieoreo11:
idk
mariah16:
7(-4x+3) =-91
cookieoreo11:
im slow at math for math
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mariah16:
fr tho same
mariah16:
surprised i even got one and two right ;-;
cookieoreo11:
congrats
mariah16:
lol
cookieoreo11:
ayo can anyone help us out over here
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cookieoreo11:
7 ( - 4x + 3) = -91
mariah16:
hi josh
mariah16:
marleen x=4
mariah16:
for number 3
mariah16:
lmao
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cookieoreo11:
who dat
cookieoreo11:
wrong name
mariah16:
wym whos what
cookieoreo11:
wait whats the answer
mariah16:
dude number 3 is x=4
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cookieoreo11:
ight
cookieoreo11:
x=4 ? right
mariah16:
bc -112 divided -28 ... x=4
mariah16:
you divide -28 on both sides
Extrinix:
Here:
\(7 ( - 4x + 3) = -91\) factor it out
\(-28x + 21 = -91\) find \(x\)
---
\(-28x + 21 = -91\) subtract 21 from both sides
\(-28x=-112\) divide by \(-28\) on both sides
\(x=4\)
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cookieoreo11:
thank you so much
mariah16:
and -28 and -28 cancel out and your left with -112 divided -28 ... x=4
cookieoreo11:
dang your smart
GoodFellow:
As a shortcut, I would say first divide both sides by 7, it simplifies the process with smaller numbers
Extrinix:
@goodfellow wrote:
As a shortcut, I would say first divide both sides by 7, it simplifies the process with smaller numbers
Yeah, but that's not how you're suppose to answer if you need to show your work in class.