00:01
Okay, so we want to solve the following for y.
00:04
So our first step is to expand everything that we have.
00:07
Well, so let's expand what we have in our brackets first.
00:10
So we're going to multiply out this negative three, multiply out this negative three here, and this five.
00:17
So let's begin.
00:18
So we have 25 minus 2 plus 5y, minus a 3y, and then minus a 6, is equal to a negative 6 y, plus a 15 minus a 5y minus a 5 minus a 5 minus 3 y and then plus 3 okay and now let's combine like terms in our brackets so we have a 6 y and this 5 and 3 here okay so we have 25 minus a 2 minus 6 that's a negative 4 and then plus a 2y is equal to a negative 6 y plus 15 minus a a 2y minus 2.
01:07
And now we can finally multiply through this negative sign here.
01:12
Okay, so we get 25 plus a 4 minus a 2y is equal to negative 6y plus 15 minus a 2y and then plus 2.
01:25
And now let's combine like terms 25 plus 4 is 29 minus a 2y...