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anonymous
 one year ago
find the value of y
anonymous
 one year ago
find the value of y

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freckles
 one year ago
Best ResponseYou've already chosen the best response.1those are length measurements right?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1if so you might want to solve for x first then use similar triangles to find y

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay, but i dont know how to

freckles
 one year ago
Best ResponseYou've already chosen the best response.1we are given that 5x+8 is equal to 21x

freckles
 one year ago
Best ResponseYou've already chosen the best response.1can you solve for x now?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1I'm asking if you know how to solve 5x+8=21x for x?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Subtract 8 from both sides?

freckles
 one year ago
Best ResponseYou've already chosen the best response.18 has no friends on the other side why not trying to subtract 5x on both sides

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i got you,okay so x=8

freckles
 one year ago
Best ResponseYou've already chosen the best response.1wait did you subtract 5x on both sides? 8=21x5x 8=16x now divide both sides by 16

freckles
 one year ago
Best ResponseYou've already chosen the best response.18/16 shouldn't be 2 but 1/2

freckles
 one year ago
Best ResponseYou've already chosen the best response.1these are two difference numbers

freckles
 one year ago
Best ResponseYou've already chosen the best response.1anyways x=1/2 which means if x=1/2 then 21x is 21/2 or if you plugged x into the other expression 5x+8 you should still get 21/2 moving the bar up to show the similar triangles in a more obvious way: dw:1438743769937:dw

freckles
 one year ago
Best ResponseYou've already chosen the best response.1now set up your equivalent ratios and solve for y

freckles
 one year ago
Best ResponseYou've already chosen the best response.1dw:1438743912912:dw \[\frac{a}{c}=\frac{a+b}{c+d}\]
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