Question

Помогите решить 1,1(0,1х+9)=26,1-0,19х Ответ будет 56

Answer 1

1.1(0.1х+9)=26.1-0.19х
0.11х+9.9=26.1-0.19х
0.11х+0.19х=26.1-9.9
0.3х=16.2
х=54

Answer 2

$1.1(0.1x + 9) = 26.1 - 0.19x \\ 0.11x + 9.9 = 26.1 - 0.19x \\ 0.19x + 0.11x = 26.1 - 9.9 \\ 0.3 x= 16.2 \\ x = \frac{16.2}{0.3} \\ x = 54$