Question

{2xa+63:[36:4-2x(2+1)]}:5=5

Answer 1

{2*a+63:[36:4-2*(2+1)]}:5=5
[2*a+63:(36:4-2*3)]:5=5
[2*a+63:(9-6)]:5=5
(2*a+63:3):5=5
2*a+63:3=5*5
2*a+63:3=25
2*a+63=25*3
2*a+63=75
2*a=75-63
2*a=12
a=12:2
a=6
Sper ca te-am ajutat..