anonymous
  • anonymous
9x-(7x+1/2)=3x+(1/2-X)
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
x=0
anonymous
  • anonymous
do you know how to do the distributive property?
anonymous
  • anonymous
Yea bt im nt sure hw to strt

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anonymous
  • anonymous
9x-(7x+1/2)=3x+(1/2-X) 9x-7x=2x 2x+1/2=3x+1/2-x 2x+1/2=2x+1/2 2x=2x x=x
anonymous
  • anonymous
the answer is "all real numbers"
anonymous
  • anonymous
\[9x -1(7x+\frac{ 1 }{ 2 }) = 3x + 1(\frac{ 1 }{ 2 }-x)\] does that look nicer? :}
anonymous
  • anonymous
the answer is x=x not just all real numbers
anonymous
  • anonymous
Thanks can u help with thid
anonymous
  • anonymous
-4/7x=-12+4
anonymous
  • anonymous
well to get rid of the fraction multiply both sides by 7 to get what
anonymous
  • anonymous
7x sorry
anonymous
  • anonymous
or divide each side by four leaving the left side negative seven
anonymous
  • anonymous
7 cancels out?
anonymous
  • anonymous
\[\frac{ -4 }{ 7x } = -12 + 4\]
anonymous
  • anonymous
9x-(7x+1/2)=3x+(1/2-X) lets say x=34 306-238+1/2=102+1/2-34 68+1/2=68+1/2 - lets say that x=113 1017-791+1/2)=339+1/2-113 226+1/2=226+1/2 i can do this all day, because X= ALL REAL NUMBERS
anonymous
  • anonymous
on the left do you want to get rid of the seven or the four
anonymous
  • anonymous
7
anonymous
  • anonymous
i got x = 14
anonymous
  • anonymous
Hw/
anonymous
  • anonymous
multiply both sides by 7x to get \[-4 = -84x + 28x\] \[-4 = -56x\] \[0 = \frac{ -56x }{ -4 }\] 0 = 14x 0 = x
anonymous
  • anonymous
@lharrell97 if x=x then it can be anything because you don't know the value of x so it could be an imaginary number or it could be elephant...not JUST all real numbers
anonymous
  • anonymous
Thanks bt i hve more x+5 over 3 = x-3 over 4
anonymous
  • anonymous
because you dont know the value of X, it could be any possible number. x could equal 3 billion or it could equal 2. the answer therefore is X= all real numbers... although i can see where you're coming from haha
anonymous
  • anonymous
Hw would i work it out?
anonymous
  • anonymous
i think it's probable that X=elephant probably...yeah probably lol
anonymous
  • anonymous
look like that? \[\frac{ x + 5 }{ 3 } =\frac{ x - 3 }{ 4 }\]

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