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show 5x-15 is proportional to 6-2x

Guest Apr 21, 2017
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 #1
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5x - 15 = 6 - 2x 

x ( 2 + 5) = 21

x = 21 / 7 = 3

 

so when x = 3

 

grts Diek

Guest Apr 21, 2017
 #2
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5x - 15  :   6 - 2x        rewrite the right side

 

5x - 15  :  -2x + 6        factor

 

5(x - 3)  :  -2 ( x - 3)     divide by (x - 3)

 

5 :  - 2

 

 

 

cool cool cool 

CPhill  Apr 21, 2017

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