in parallelogram abcd ,< A=3x-5 and <D= 2x=15,find the value of x

Hello Noor Fathima dear, in a parallelogram opposite angles <A and <C have to be equal. Same way <B and <D have to be equal. But <A and <D are given. They are adjacent angles.
In a parallelogram adjacent angles are supplements. This means their sum = 180
So 3x - 5 + 2 x - 15  = 180
==> 5x = 180 + 20 = 200
OR x = 40^o