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mmayyer
@mmayyer
July 2022
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Решите уравнения:
1) 4х - (3-2х)=-15(13-5х);,
2) 4(3-2х)+24=2(3+2х);
3)0,6(х+7)=0,5(х-3)+6,8;
4)(х+7):3=(2х-3):5.,
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100pudov
1)4х-3+2х=-195+75х;
4х+2х-75х=-195+3;
-69х=-192;
х≈2,8
_____________________
2)12-8х+24=6+4х;
-8х-4х=6-12-24;
-12х=-30;
х=2,5
_______________________
3)0,6х+4,2=0,5х-1,5+6,8;
0,6х-0,5х=-1,5+6,8-4,2;
0,1х=1,1
х=11
________________________
4)(x+7)/3=(2x-3)/5; (5х+35)/15=(6х-9)/15; 5x+35=6x-9;5x-6x=-9-35; x=44
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Answers & Comments
4х+2х-75х=-195+3;
-69х=-192;
х≈2,8
_____________________
2)12-8х+24=6+4х;
-8х-4х=6-12-24;
-12х=-30;
х=2,5
_______________________
3)0,6х+4,2=0,5х-1,5+6,8;
0,6х-0,5х=-1,5+6,8-4,2;
0,1х=1,1
х=11
________________________
4)(x+7)/3=(2x-3)/5; (5х+35)/15=(6х-9)/15; 5x+35=6x-9;5x-6x=-9-35; x=44