Question

a×3+18:6-4×5+2×10=33 Cît este (a) ?

Answer 1

a*3+3-20+20=33
a*3=33-20+20-3
a*3=30
a=10

Answer 2

a×3+18:6-4×5+2×10=33 
b+3-20+20=33
c-20+20=33
d+20=33
d=33-20
d=13
c-20=13
c=20+13
c=33
b+3=33
b=33-3
b=30
ax3=30
a=30:3
a=10