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Автор - iluha09

Помогите решить уравнения.
1. 7(3x-2)-6(4x+7)=18x
2. 9(2x-1)+2=2(8x-3)+2x

Ответ

Автор - она2
7(3x-2)-6(4x+7)=18x;
21x-14-24x-42=18x;
21x-24x-18x=42+14;
21x-42x=56;
-21x=56;
x=-56:21;
x~-2,67.
9(2x-1)+2=2(8x-3)+2x;
18x-9+2=16x-6+2x;
18x-16x-2x=9-2-6;
0x=1;
корней нет.

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