Ответ:

Пошаговое объяснение:

1.  x/8+x/11=-19/11;

11x/88+8x/88 = -19/11;

19x/88=-19/11;

x=-19/11 : 19/88;

x=-19/11 * 88/19;

x=-8.

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2. x/6+x/10=15/16;

5/30x+3/30x=15/16;

8/30x=15/16;

x=15/16 : 8/30;

x=15/16 * 30/8;

x=450/128;

x=225/64.

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3.  x/5+x/9=-14/15;

9/45x+5/45x=-14/15;

14/45x=-14/15;

x=-14/15 :14/45;

x=-14/15 * 45/14;

x= -3.

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4.  x/6+x/12+x=35/3;

2/12x+1/12x+x=35/3;

3/12x+x=35/3;

5/4x=35/3;

x=35/3:5/4;

x=35/3*4/5;

x=28/3.

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5.  x/2+x/6+x=-5/3;

3/6x+1/6x+x=-5/3;

5/3x=-5/3;

x=-5/3:5/3;

x=-1.

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6.  x/5+x/3+x=23/5;

3/15x+5/15x+x=23/5;

23/15x=23/5;

x=23/5:23/15;

x=23/5*15/23;

x=3.

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7.  6-x/2=x/3;

x/2+x/3=6;

3/6x+2/6x=6;

5/6x=6;

x=6:5/6;

x=6*6/5;

x=36/5.

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8.  4-x/7=x/9;

x/9+x/7=4;

7/63x+9/63x=4;

16/63x=4;

x=4:16/63;

x=4*63/16;

x=63/4.