Question

решите уровнение (0.9x+1.23):1.1=3​

Answer 1

(0.9x+1.23):1.1=3

(0.9x + 123/100) : 11/10=3

(9/10x + 123/100) • 10/11= 3

9/10x + 123/110 = 3

90x + 123 = 330

90x = 330 - 123

90x = 207

x = 23/10