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LololoshkaIG
@LololoshkaIG
July 2022
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Срочно!
Помогите решить систему уравнений способом сложения!
{ 2(5x-3)-3(y+2)=5
{ 3(4x-1)-4(2y-1)=17
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mthomsan
2(5х-3)-3(у+2)=5
3 (4х-1)-4(2у-1)=17
10x-6-3y-6=5
12x-3-8y+4=17
10x-12-3y=5
12x+1-8y=17
10x-3y=5+12
12x-8y=17-1
10x-3y=17 /*-8
12x-8y=16 /*-8
-80x+24y=-136
36x-24y=48
-44x=-88
x=2
10*2-3y=17
y=1
(x,y)=(2,1)
12 votes
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Answers & Comments
3 (4х-1)-4(2у-1)=17
10x-6-3y-6=5
12x-3-8y+4=17
10x-12-3y=5
12x+1-8y=17
10x-3y=5+12
12x-8y=17-1
10x-3y=17 /*-8
12x-8y=16 /*-8
-80x+24y=-136
36x-24y=48
-44x=-88
x=2
10*2-3y=17
y=1
(x,y)=(2,1)