Hello, please answer if
then what is the answer of

Step-by-step explanation:

Given,

a/b = c/d = 2/5

=> a + 3c + 4/b + 3d + 10

=> (a/b) + (3c/3d) + (4/10)

=> 2/5 + 3(c/d) + 4/10

=> 2/5 + 3(2/5) + 4/10

=> 2/5 + 6/5 + 2/5

=> 2 + 6 + 2/5

=> 10/5

=> 2

think about it deeply and passionately about this property

i am sorry

2, 2, 2 or -4, 20, 29

step-by-step explanation:

there is two ways you can do it.