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nikitagolomolzin53
@nikitagolomolzin53
August 2022
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Ребят помогите решить голову ломаю немогу
16,4+5,2х-х=6-х
(Х-7)-(2х+9)=-13
3у-5(2-у)=у-31
2(х-2)=3+3(1-х)
1,78у-1,2=2,48у+2,44
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Answers & Comments
jekadva
16,4+5,2х-х=6-х
5,2x-x+x=6-16,4
5,2x=-10,4
x=-10,4:5,2
x=-2
===========
(Х-7)-(2х+9)=-13
x-7-2x-9=-13
-x=-13+7+9
-x=3
x=-3
=============
3у-5(2-у)=у-31
3y-10+5y=y-31
3y-y=-31+10
3y=-21
y=-21:3
y=-7
========
2(х-2)=3+3(1-х)
2x-4=3+3-3x
2x+3x=3+3+4
5x=10
x=10:5
x=2
===============
1,78у-1,2=2,48у+2,44
1,78y-2,48y=2,44+1,2
-0,7y=3,64
y=3,64:(-0,7)
y=-5,2
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nikitagolomolzin53
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Answers & Comments
5,2x-x+x=6-16,4
5,2x=-10,4
x=-10,4:5,2
x=-2
===========
(Х-7)-(2х+9)=-13
x-7-2x-9=-13
-x=-13+7+9
-x=3
x=-3
=============
3у-5(2-у)=у-31
3y-10+5y=y-31
3y-y=-31+10
3y=-21
y=-21:3
y=-7
========
2(х-2)=3+3(1-х)
2x-4=3+3-3x
2x+3x=3+3+4
5x=10
x=10:5
x=2
===============
1,78у-1,2=2,48у+2,44
1,78y-2,48y=2,44+1,2
-0,7y=3,64
y=3,64:(-0,7)
y=-5,2