Решите уравнение. а) x+2=4-x б) 3x+1=5x-3 в) 2x-3=2-3x г) 2x+3=3x-7 д) 9x-2=5x-2 е) 10-3x=2x-15

Вычислим корни уравнений:

а) x + 2 = 4 - x;

x + x = 4 - 2;

x * (1 + 1) = 2;

2 * x = 2;

x = 2/2;

x = 1.

б) 3 * x + 1 = 5 * x - 3;

3 * x - 5 * x = - 3 - 1;

x * (3 - 5) = - 4;

-2 * x = - 4;

2 * x = 4;

x = 4/2;

x = 2.

в) 2 * x - 3 = 2 - 3 * x;

2 * x + 3 * x = 2 + 3;

5 * x = 5;

x = 5/5;

x = 1.

г) 2 * x + 3 = 3 * x - 7;

2 * x - 3 * x = - 7 - 3;

-x = - 10;

x = 10.

д) 9 * x - 2 = 5 * x - 2;

9 * x - 5 * x = - 2 + 2;

4 * x = 0;

x = 0/4;

x = 0.

е) 10 - 3 * x = 2 * x - 15;

-3 * x - 2 * x = - 15 - 10;

5 * x = 25;

x = 25/5;

x = 5.