1440.
1) [2(x-2y)=x-8y,
15(x+y)=2(x-y)+10;
3) [15+2(x+3y)=3(4x + y),
2 (5x-y)-3y=2+3(2x-y);
2) [3(x+4y) - 4x = 2(2x+y), 4) (5 (7x+2y)-11y = 6(2x+y)+2,
7(x-5y)+6x=3(x+4y) +27;
33+3 (6x-5y)=3(x+2y)-5y.
помогите пожалуйста
1) [2(x-2y)=x-8y,
15(x+y)=2(x-y)+10;
3) [15+2(x+3y)=3(4x + y),
2 (5x-y)-3y=2+3(2x-y);
2) [3(x+4y) - 4x = 2(2x+y), 4) (5 (7x+2y)-11y = 6(2x+y)+2,
7(x-5y)+6x=3(x+4y) +27;
33+3 (6x-5y)=3(x+2y)-5y.
помогите пожалуйста
More Questions From This User See All
Answers & Comments
Verified answer
Ответ:
1) 2(x-2y}=x-8y
5(x+y) =2(x-y) +10
2x-4y=x-8y
5x+5y=2x-2y+10
2x-x-4y+8y=10
5x-2x+5y+2y=10
3x-4y=10
3x+7y=10 (× -1)
3x-4y=10
-3x-7y=-10
-y=0
x= 0.3