Question

Помогите пожалуйста 416 (б,г)

Answer 1

б)(x-11)+20=55
x-11=35
x=46

г)3x+8+(2x-5)=13
3x+8+2x-5=13
5x=10
x=2

Answer 2

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