00:01
All right, so for problem number 82, we need to solve the equation 7 plus k over 5 equals negative 1.
00:13
So we're going to start by getting the 7 over to the other side.
00:17
So we do that by subtracting 7 from both sides of the equation, and that leaves us with k over 5 since 7 minus 7 is just 0.
00:25
That equals, well, negative 1 minus 7 is negative 8.
00:31
Now, in order to get k, we need to multiply 5 on both sides of the equation.
00:39
So that will get rid of this division right here.
00:42
So then we're left with k is equal to, since these cancel out, negative 8 times 5, and that is negative 40.
00:51
So this is our solution, but of course we need to now check that and make sure it works...