2x+4x/5=1
6x-2(x-1)=5
2(x-1)+3(x-2)=7
2x+4x/5=1/*5
10x+4x=5
14x=5/:14
x=5/14
6x-2x+2=5
4x=5-2
4x=3/:4
x=3/4
2x-2+3x-6=7
5x-8=7
5x=7+8
5x=15/:5
x=3
2x+4x/5=1 |*5
5*2x+5*4x/5=5*1
14x=5 |:14
6x-2x=5-2
4x=3|:4
2x+3x=7+2+6
5x=15 |:5
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2x+4x/5=1/*5
10x+4x=5
14x=5/:14
x=5/14
6x-2(x-1)=5
6x-2x+2=5
4x=5-2
4x=3/:4
x=3/4
2(x-1)+3(x-2)=7
2x-2+3x-6=7
5x-8=7
5x=7+8
5x=15/:5
x=3
2x+4x/5=1 |*5
5*2x+5*4x/5=5*1
10x+4x=5
14x=5 |:14
x=5/14
6x-2(x-1)=5
6x-2x+2=5
6x-2x=5-2
4x=3|:4
x=3/4
2(x-1)+3(x-2)=7
2x-2+3x-6=7
2x+3x=7+2+6
5x=15 |:5
x=3