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30 votes

​ please solve this math


​ ​

​ ​ please solve this math ​ ​ ​-example-1
User Inetknght
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1 Answer

23 votes
23 votes

Answer

#1


(2.5x+1)/(3.5x-1) =(1.6)/(1.8) \\

use cross multiplication


1.8(2.5x+1)=1.6(3.5x-1)\\4.5x+1.8=5.6x-1.6\\1.8+1.6=5.6x-4.5x\\3.4=1.1x\\(3.4)/(1.1) =(1.1x)/(1.1)\\3.09=x

#2


(6x+5)/(2x-3)=(3x-4)/(x+8)\\

Use cross multiplication


(6x+5)(x+8)=(3x-4)(2x-3)\\6x^(2) +48x+5x+40=6x^(2) -9x-8x+12\\6x^(2) -6x^(2) +53x+40=-17x+12\\53x+17x=-40+12\\70x=-28\\(70x)/(70) =(-28)/(70) \\x=-0.4

Hope this helps you

Let me know if you have any other questions :-)

User Smbd Uknow
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