00:01
Hello everyone.
00:03
The question wants us to solve for the following equation, which is 0 .2m minus 0 .5 being equal to 0 .1m plus 0 .7.
00:17
So solve for this kind of problem.
00:19
I need to isolate for the variable of interest, which is the m.
00:23
So by that i mean i'll bring to one side everything that contains m and put on the other side everything that is just a constant.
00:33
I will start with writing the formula the same equation as is, so 0 .2m minus 0 .5.
00:39
I leave a little bit of space.
00:40
This will be equal to 0 .1m plus 0 .7.
00:45
What i want to do at the first step is to remove this 0 .1m from this side.
00:50
So i will have to subtract with an 0 .1m.
00:54
And because i did this on the right side, i have to do the same thing on the other side.
00:59
O .1.
01:01
So this will bring us to, to 0 .2m minus 0 .1m, this is an 0 .1m, minus the 0 .5 being equal to 0 .1m will cancel with the negative 0 .1m, and i'll be left with an 0 .7.
01:18
Now, i have the ends on one side, and on the other side, i have to put all constants...