4x-5=8;
5x-2+x+4=8;
7-3/4x=16;
5x-4=7;
6x-3x+1=8
8-3/5x=7
2x-2*(1=3x)=7
5x-2+x+4=8;
7-3/4x=16;
5x-4=7;
6x-3x+1=8
8-3/5x=7
2x-2*(1=3x)=7
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Answers & Comments
5x-2+x+4=8; 6х+2=8; 6х=8-2; 6х=6; х=1
7-3/4x=16; 3/4х=7-16; 3/4х=-9; х=(-9/1)/(-3/4); х=12
5x-4=7; 5х=7+4; 5х=11; х=11/5; х=2 1/5
6x-3x+1=8; 3х=7; х=7/3; х=2 1/3
8-3/5x=7; 3/5х=8-7; 3/5х=1; х=1/(3/5); х=1,66667