Ответы на вопрос:
1-2(x+2y)=5x+12y
6(х-4у)=5(3х+4у)-136(x-4y)=5(3x+4y)-13 6x-24y-(15x+20y)+13=0 -9x-44y+13=0
y=-(9x-13)/441-2(x+2y)=5x+12y1-2(x+2*-13)/44))=5x+12*-13)/44)1-13//11x-13//11-5x-12*-13)/44)=0
-2//11-68//11x-12*/44-13/44))=0
-2//11-68//11x-12*//44x-13//44))=0
-2//11-68////11x+39//11)=0
-2//11-41//11x-39//11=0
-41//11-41//11x=0
x=(-41//11)/(41//11)
x=-16(x-4y)=5(3x+4y)-13 )-4y)=5(3*(-1)+4y)-13
-6-24y-5*(-3+4y)+13=0
-6-24y+15-20y+13=09-44y+13=0
22-44y=0
y=)/44
y=22/44
y=0.5
ответ: x=-1; y=0.5.
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