3 1/8x-(3,5-2x)=3(2 5/6+1 1/3x)
25х-7/2+2х=17/2+11х
41/8х-7/2=17/2+11х
41х-28=68+88х
41х-88х=68+28
-47х=96
х=-96/47 ;х=-2 2/47
3 1/8x-(3,5-2x)=3(2 5/6+1 1/3x)
25х-7/2+2х=17/2+11х
41/8х-7/2=17/2+11х
41х-28=68+88х
41х-88х=68+28
-47х=96
х=-96/47 ;х=-2 2/47