(k+ 5).7-54=(k+5).4 и (y+1).18=36+12.(y+1)

Question

(k+ 5).7-54=(k+5).4

и

(y+1).18=36+12.(y+1)

Answer 1

 

7к+35-54=4к+20
3к-39=0
к=13

и

18у+18=36+12у+12
6у-30=0
у=5