This should not be a problem, when you consider the following situations:
==> You have 3 cows. You get 5 more cows. Now you have 8 cows.
==> You have 3 tomatoes. You get 5 more tomatoes. Now you have 8 tomatoes.
==> You have 3 books. You get 5 more books. Now you have 8 books.
Am I going too fast for you ?
==> You have 3 chickens. You get 5 more chickens. Now you have 8 chickens.
==> You have 3 eggs. You get 5 more eggs. Now you have 8 eggs.
Now hold on to your hat. Here we go ! . . .
==> You have 3 'a's. You get 5 more 'a's. Now you have 8 'a's.
2a + 5a + 3a = 10a
6b+5a-4b+3a= ? Rearrange it as 5a+3a+6b-4b = 8a+2b
5a + 4b - 3a =(5a - 3a) + 4b =2a + 4b =2 (a + 2b)
If 3a+5=5a+3, then: 3a+5 - 3a = 5a+3 - 3a 5=2a+3 5 - 3=2a+3 - 3 2=2a a=1
14a - 4a + 5a - 3a = 12a
2a + 5a + 3a = 10a
6b+5a-4b+3a= ? Rearrange it as 5a+3a+6b-4b = 8a+2b
The given expression can be simplified to: 3b-a
a + 3a + 5a = 180 9a =180 a = 20
-8a + 3a = (-8 + 3)a = (5)a = 5a
5a + 4b - 3a =(5a - 3a) + 4b =2a + 4b =2 (a + 2b)
If 3a+5=5a+3, then: 3a+5 - 3a = 5a+3 - 3a 5=2a+3 5 - 3=2a+3 - 3 2=2a a=1
3a + 2a = 5a
5a
14a - 4a + 5a - 3a = 12a
13a - 6 + a = 5a + 3 + 3a 13a + a - 5a - 3a = 3 + 6 6a = 9 6a/6 = 9/6 a = 3/2
2a + 3a = 5a