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mydarthveder
@mydarthveder
August 2021
2
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помогите решить систему пожалуйста
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Мпрмггнпшоиол
{72x+80y=6,16
{56x+64y=4,88
{72x+80y=154/25
{56x+64y=122/25
72x=(-80y)+154/25
72x/72=1/72((-80y)+154/25)
x=(-80y/72)+154/1800
x=(-10y/9)+77/900
56x+64y=122/25
64y+56((-10y)/9+77/900)=122/25
16y/9+1078/225=122/25
16y/9=4/46хъэхъэхъхъэъхъээхэъъэх
16/9x÷16/9=1/20
y=1/20
x=(-10y/9+77/900
x=-1/18+77
x=3/100
Ответ:
y=1/20x-3/100
x=3/100
0 votes
Thanks 1
Сещемару
72x+80y=6,16 |•4
56x+64y=4,88 |•(-5)
288x+320y=24,64
-280x-320y=-24,4
288x+320y=24,64
8x=0,24
288•0,03+320y=24,64
x=0,03
320y=16
x=0,03
y=0,05
x=0,03
1 votes
Thanks 1
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Answers & Comments
{56x+64y=4,88
{72x+80y=154/25
{56x+64y=122/25
72x=(-80y)+154/25
72x/72=1/72((-80y)+154/25)
x=(-80y/72)+154/1800
x=(-10y/9)+77/900
56x+64y=122/25
64y+56((-10y)/9+77/900)=122/25
16y/9+1078/225=122/25
16y/9=4/46хъэхъэхъхъэъхъээхэъъэх
16/9x÷16/9=1/20
y=1/20
x=(-10y/9+77/900
x=-1/18+77
x=3/100
Ответ:
y=1/20x-3/100
x=3/100
56x+64y=4,88 |•(-5)
288x+320y=24,64
-280x-320y=-24,4
288x+320y=24,64
8x=0,24
288•0,03+320y=24,64
x=0,03
320y=16
x=0,03
y=0,05
x=0,03