Y × 2 =10
Y = 10 ÷ 2
Y = 5
A + 8 = 16
A = 16 - 8
A = 8
D × 2 = 24
D = 24 ÷ 2
D = 12
D . 25 = 85
D = 85 : 25
D = 3,4
150 + X = 200
X = 200 - 150
X = 50
L ÷ 2 + S × 6 =16
S = 60 ÷ 10
S = 6
L= 5 × 2
L= 10
10 + 6 = 16
