I can solve the proportions by any method. can anyone help me understand this.

Question

#1
4/15 = x/5

#2
x/3 = x+10/6

Answer 1

cross multiply.

So for #1 It becomes
(4)(5) = 15x in the next step.
then continue to find X

Answer 2

What do you mean by "understand"?
I can solve the first one for you.
4/15 = x/5
Cross mutliply.
5*4 = x*15
20=15x
x=20/15 = 4/3 = 1.333.

The second one needs some work.Is that x/3 = x+(10/6) or is it
x/3 = (x+10)/6

Answer 3

it is:

x/3 = x + 10/6

it would read as x over 3 = x plus 10 over 6

Answer 4

what i meant by not understanding is just that, i am lost with the numbers and letters together once i get someone to show me one i can do the rest. I can whip threw them if they are story problems but not just a line of letters and numbers.
Thanks for your help.