540 : x = 380 : 19
540 : x = 20
x = 540 : 20
x = 27
x * 6 = 18000 + 24
x * 6 = 18024
x = 18024 : 6
x = 3004
3480 − x = 2190 : 3
3480 − x = 730
x = 3480 − 730
x = 2750
x + 2010 = 3001 * 4
x + 2010 = 12004
x = 12004 − 2010
x = 9994
Условие:
Реши уравнения.
540 : x = 380 : 19;
x * 6 = 18000 + 24;
3480 − x = 2190 : 3;
x + 2010 = 3001 * 4.