Решить уравнения плиз
2)1 4/5x-2 1/2-2=-2 1/3-1/6-1/5
4) 0.9(x-5)+2/5(6-x)=2/5+0.3(x+20)-0.2x
2)1 4/5x-2 1/2-2=-2 1/3-1/6-1/5
4) 0.9(x-5)+2/5(6-x)=2/5+0.3(x+20)-0.2x
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Answers & Comments
1 4/5х= 4 1/2-2 1/3-1/6-1/5
1 4/5х= 2-1/5=9/5
х= 9/5÷9/5=1
4)
0,9х-4,5+12/5-2/5х=2/5+0,3х+6-0,06х
9/10х-2/5х-3/10х-3/50х= 9/2-12/5+2/5+6
1/5х-3/50х= 9/2-10/5+6=5/2+6
7/50х= 17/2
х= 17/2÷7/50=425/7=60 5/7