144:(х-3)=36 21*(у-8)=84

Question

144:(х-3)=36 21*(у-8)=84

Answer 1

Решение
144:(х-3)=36
x - 3 = 144/36
x - 3 = 4
x = 4 + 3
x = 7

21*(у-8)=84
y - 8 = 84/21
y - 8 = 4
y = 4 + 8
y = 12