tanA +CotA=SecA×
2p − 10.8 = 3.2
4(b + 1) = 20
r/3 + 2 = 15
12.5 = w/3 + 9.5
h + 1.75/3 = 2.15
4f − –4 = 12
t/-2 + -6 =-5
t/2 + -6 =-5
t
–2
+ –6
= –5