1
00:00:00,000 --> 00:00:06,219
Hello, today I am going to explain the exercise, the problem 28.

2
00:00:07,060 --> 00:00:15,960
Okay, it says, Mónica has 12 euros more than Javier and they expect that tomorrow they will give 5 euros of payment to each one.

3
00:00:16,280 --> 00:00:19,280
In that case, Mónica will have twice as much tomorrow as Javier.

4
00:00:19,859 --> 00:00:21,600
How much does each one have today?

5
00:00:21,600 --> 00:00:33,820
the data would be that Javier has X amount of money and well, we add the amount of tomorrow,

6
00:00:33,820 --> 00:00:42,700
so it would be X plus 5 and Mónica says that she has 12 euros more than Javier, so it is 12 plus X and

7
00:00:42,700 --> 00:00:55,580
plus 5 because there it also gives them 5 euros tomorrow to pay and it would be the double 2 times x plus 5

8
00:00:56,940 --> 00:01:11,600
the placement would be demonic 12 plus 5 which are 17 then 17 plus x is equal to 2 times x plus 5

9
00:01:12,700 --> 00:01:29,820
ok first we do the parenthesis then it is the same 17 plus x is equal to 2 x plus 10 2 times x 2 x and 2 times 10 times 5 10

10
00:01:31,740 --> 00:01:40,260
ok we pass the x on one side and the numbers on the other then it would be x and the 2 x is

11
00:01:40,260 --> 00:01:53,700
subtracts then minus 2x and is equal to 10 and 17 is subtracted minus 17 then minus 2 minus x

12
00:01:53,700 --> 00:02:07,680
x and is equal to 17 minus 10 7 then the solution is that Javier has 7 euros today and Monica has 12

13
00:02:07,680 --> 00:02:20,740
plus 7, which is 19 euros, and tomorrow it would be that Javier adds 5 to 7 and Mónica adds 5 to 19, and that's it.