Question

Помогите пожалуйста 416 (б,г)

Answer 1

Б)
$20 + (x - 11) = 55 \ х - 11 = 35 \ x = 35 + 11 \ x = 46$
Г)
$(3x + 8) + (2x - 5) = 13 \ 3x + 8 + 2x - 5 = 13 \ 5x + 3 = 13 \ 5x = 13 - 3 \ 5x = 10 \ x = 10 div 5 \ x = 2$