|х| = 3,5
х = 3,5
х = - 3,5
_________________________
|у - 3| + 1 = 9
|y - 3| = 9 - 1
|y - 3| = 8
у - 3 = 8 у - 3 = - 8
у = 8 + 3 у = - 8 + 3
у = 11 у = 3 - 8
у = -5
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|0,2х| = 0
х = 0 : 0,2
х = 0
\/160000 = 400 и - 400,
\/0,0001 = 0,01 и - 0,01,
\/4/9 = 2/3 и - 2/3,
\/16/25 = 4/5 и - 4/5
<span>1)0,2(5x-5y)+8,3x=х-у+8,3х=9,3х-у
</span>2)1,5(4a+3b)+9,5b=6а+4,5b+9,5b=6а+14b<span>
3)3,5(3m+2n)-4n=10,5</span>m+7n-4n=10,5m+3n<span>
4)2,3(8a+12b)-4a=18,4а+27,6</span>b-4а=14,4а+27,6b<span>
5)3,1(4m-2n)+4,8(2m+4n)</span> =12,4m-6,2n+9,6m+19,2n=22m+13n
В числе 309
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