taylorcolm21 taylorcolm21

04-09-2014
Mathematics

Answered

0.2 (x+3)-4 (2x-3)=0.9 please solve

Answer :

04-09-2014

[tex]0,2(x+3)-4(2x-3)=0,9\\\\\ 0,2x+0,2*3-8x-4*(-3)=0,9\\\\ 0,2x+0,6-8x+12=0,9\\\\-7,8x=0,9-0,6-12\\\\ -7,8x=-11,7\ \ \ |:-7,8\\\\ x=1,5 [/tex]

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nivialuisa nivialuisa

04-09-2014

0.2x+0.6-8x+12=0.9
0.2x-8x=0.9-0.6-12
-2.8x= -11.7
x=-11.7:(-2.8)
x= 4.2

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