1.(x-6)-4 2.(6-x)-(3+x)=0

(x - 6) - 42 * (6 - x) - (3 + x) = 0;

х - 6 - 252 + 42х - 3 - х = 0;

42х - 261 = 0;

42х = 0 + 261;

х = 261 : 42;

х = 6,214285714285714;

(6,214285714285714 - 6) - 42 * (6 - 6,214285714285714) - (3 + 6,214285714285714) = 0;

0,214285714285714 - 42 * (-0,214285714285714) - 9,214285714285714 = 0;

0,214285714285714 + 8,999999999999988 - 9,214285714285714 = 0;

9,214285714285714 - 9,214285714285714 = 0;

0 = 0.