Question

3,5*(0,4+х)=56,7 помогите решить пж я ничайно вышил

Answer 1

3.5 * (0.4 + х) = 56.7
14 + 3.5х = 56.7
3.5х = 56.7 - 14
3.5х = 42.7
х = 42.7 : 3.5
х = 12.2

Answer 2

$3.5 \times (0.4 + x) = 56.7 \\ 14 + 3.5x = 56.7 \\ 3.5x = 42.7 \\ x = \frac{42.7}{3.5} \\ x = 12.2$