sarah_98
help in algebra??!?!



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sarah_98
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7(X+1)=9(2X1)

.Sam.
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6X=102X
Add (2 X6) to both sides:
X=4

sarah_98
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i didnt understand :S

adunb8
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well bascially combine the like terms leave the x for now and add all the numbers together

adunb8
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on our right side we get 6x and left side we get 102x

sarah_98
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but how 6x? isnt it 6X6?

sarah_98
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i mean 6x+6

adunb8
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lets start with right side
move the negative () sign into the (pathenses)

adunb8
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what do you get?

sarah_98
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7x10?

adunb8
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dw:1347529396345:dw

adunb8
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do you get it? we move the negative sign in the outside and factored it into (2x1) there fore 92x+1 and 9+1 = 10 so 2x+10

adunb8
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do the same thing for the left side also

sarah_98
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ok

adunb8
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@sarah_98 are you getting it?

febylailani
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7(X+1)=9(2X1)
7x1=92x+1
71x=9+12x
6x=102x
2xx=106
x=4
do u understand?

sradha
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7(x+1)=9(2x1)
7x1=92x+1
6x=102x
so, x=4