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Home Q & A Board Science-Related Homework Help Mathematics
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bufi bufi
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11 years ago
The equation is 1/2x-4=-1+2x can you please solve this problem and tell me the steps nd it an algebra equation
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wrote...
#1
11 years ago
You can just make 1/2 to .5 to make it easier for you.

Then...

.5x - 4 = -1 + 2x Rightwards Arrow -3 = 1.5x Rightwards Arrow Divide both sides by 1.5 and you get -2.
wrote...
#2
11 years ago
1/2x-4=-1+2x

2(1/2x-4=-1+2x)          (   multiple everything through by 2 to get rip of the faction   .)

1x-8=-2+4x                 (  you want to combine the like term like 1x and 4x.  )

-8=-2+3x                      (   add 2 to both side  )

-6=3x                          (divide 3 to both side  )

-2=x              (  and you get x  )
wrote...
#3
11 years ago
Hi

You can also multiply all by 2, so that you cancel the fraction

x - 8 = -2 + 4x
x - 4x = -2 + 8
-3x = 6
x = -2

Hope it helped !

Bye !!!
wrote...
#4
11 years ago
1/2x-4=-1+2x  => 1 - 8x = -2x + 4x^2 => 4x^2 + 6x - 1 = 0 => x = (36 + 4)/8 = 5 or (36 - 4)/8 = 4
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