Решите уравнение 3(5•3x)=6(x+5)

3 (5 * 3x) = 6 (x + 5)
3 * 15x = 6x + 30
45x - 6x = 30
39x = 30
x = 30/39
x = 0.77

3 (5 + 3x) = 6 (x + 5)
15 + 9x = 6x = 30
3x = 15
x = 5

3×15х=6х+30
45х=6х+30
45х-6х=30
39х=30
х=30÷39=30/39=10/13