baelesly
baelesly
16-02-2015
Mathematics
contestada
0.4(2x+1\2)=3[0.2x+(-2)]-4
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luana
luana
16-02-2015
[tex]0.4(2x+\frac{1}{2})=3[0.2x+(-2)]-4\ \ \ | omit\ brackets\\\\ 0.8x+0.2=0.6x-6-4\\\\ 0.8x+0.2=0.6x-10\ \ \ | subtract\ 0.6x\\\\ 0.2x+0.2=-10\ \ \ | subtract\ 0.2\\\\ 0.2x=-10.2\ \ \ | divide\ by\ 0.2\\\\ x=-51[/tex]
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