Question

Ршите ууравнение: 1.2+3/10х = 8/15х+ 0.78

Answer 1

1,2 + 3/10x = 8/15x + 0.78
3/10x - 8/15x = 0.78 - 1.2
9/30x - 16/30x = -0.42
-7/30x = -0.42 | * (-1)
7/30x = 0.42
x = 0.42 : 7/30
x = 0.42 * 30/7
x = 0.6 * 30
x = 1.8