Sagot :
let x = age of beth
y = age of celeste
x = y - 5
(x + 1) + (y + 1) = 57
x + y + 2 = 57
x + y = 55
y - 5 + y = 55
2y = 60
y = 30 (age of celeste) x = 30 - 5 = 25 (age of beth)
y = age of celeste
x = y - 5
(x + 1) + (y + 1) = 57
x + y + 2 = 57
x + y = 55
y - 5 + y = 55
2y = 60
y = 30 (age of celeste) x = 30 - 5 = 25 (age of beth)