[ (x-7)/5 - 5/2 ] * 10 = [ (x+9)/10 ] * 10
2(x-7) - 25 = x + 9
2x - 14 - 25 - x - 9 = 0
x - 48 = 0
x= 48
2007-04-10 05:46:48
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answer #1
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answered by ........ 5
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(x-7)/5 - 5/2 = (x+9)/10 First multiply each side by 10
2(x-7) - 25 = x + 9 Clear up that parenthesis
2x - 14 - 25 = x + 9 Get x by itself on one side by adding and subtracting
x = 48
2007-04-10 12:48:41
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answer #2
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answered by ajfmf90 2
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You need to multiply each expression you have by the LCD. In this case (which is relatively simple), you multiply by the LCD, 10. Then you will have,
2(x-7) - 5(5) = x+9 (distribute)
2x-14-25 = x+9 (combine like terms)
2x - 39 = x+ 9 (isolate expressions with variable x)
x= 30
That's your answer- 30. Good luck!
2007-04-10 12:48:03
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answer #3
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answered by kash 3
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x should equal 48...
just multiply the ten off of the right side to the left to get 10(x-7)/5 - 10(5)/2= x+9
from there just simplify and solve for x!
hope that helps you :o)
2007-04-10 12:47:24
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answer #4
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answered by The_Economy_of_Mercy 2
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LCM(2,5,10)=10
2(x-7)-25=x+9
2x-14-25=x+9
x=48
2007-04-10 12:47:01
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answer #5
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answered by iyiogrenci 6
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LHS becomes [ {x - 7}/5 - 5/2]
RHS becomes {x + 9}/10
Multiply both sides by 10
LHS becomes 10 x[{x-7}/5 -5/2]
RHS becomes {x +9}
Simplify LHS [2 x {x - 7} - 25]
becomes 2x - 14 - 25
becomes 2x -39
So IF LHS = 2x - 39
and RHS = x + 9
Collect terms
x = 48
2007-04-10 12:54:54
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answer #6
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answered by Rod Mac 5
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get a common denominator on the left hand side of the equation, after that move the right hand side to the left and make it equal to zero, then solve. 5x-7/10-25/10-(x+9)/10=0
2007-04-10 12:49:50
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answer #7
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answered by lilo 2
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x=4445 i believe. i am only 8th grade, but i think this is the answer
2007-04-10 12:49:16
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answer #8
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answered by Anonymous
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