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2014-05-12T20:55:24+03:00
A)3x-35=7x-28  3x-7x=-28+35  -4x=7  x=-7/4      b)5(x-7)=3(x-4)-13   5x-35=3x-12-13   5x-3x=-25+35  2x=10  x=10/2 x=5
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2014-05-12T21:00:35+03:00
3x-35=7x-28
28-35=7x-3x
4x=-- 7
x= -7/4
5x-35=3x-12-13
5x-35=3x-25
5x-3x=35-25
2x=10
x=10/2
x=5

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