1) 15,62+x=20 2) 9,54-x=7,268 3) x-36,76=19,24 4) x+0,24=8,1

Вычислим корни.

1) 15,62 + x = 20;

x = 20 - 15.62;

x = 5 - 0.62;

x = 4.38.

2) 9,54 - x = 7,268;

-x = 7.268 - 9.54;

x = 9.54 - 7.268;

x = 2.272.

3) x - 36,76 = 19,24;

x = 36.76 + 19.24;

x = 37 + 19;

x = 56.

4) x + 0,24 = 8,1;

x = 8.1 - 0.24;

x = 8 + 1 - 0.24;

x = 8 + 0.76;

x = 8.76.