Question

Напишите разность: а) 13+65 и 11+54 б)а+86 и 91 в)181+b и 195-х г) х-16 и у-24

Answer 1

$1)(13+65)-(11+54)=78-65=13 \\ \\ 2)a+86-91=a-5 \\ \\ 3) (181+b)-(195-x)=181+b-195+x= \\ =b+x-14 \\ \\ 4)(x-16)-(y-24)=x-16-y+24= \\ =x-y-8$