00:01
Okay, so here we're given 1 plus 6q is equal to 5p, and 3p minus 4q is equal to 7.
00:08
So, well, maybe first let's go ahead.
00:12
Let's actually put our p's and q's on the same side of the equation.
00:16
So our first equation, we'd have 5p and then minus 6q.
00:22
We should trip track that.
00:23
So 5p minus 6q will be equal to 1.
00:27
And then we'd have here, we'd have 3p, and then, well, minus 4q is equal to 7.
00:36
Okay, so now, looking at this, maybe we can go ahead and multiply everything by some constant and then add our equations, then eliminate one of the variables.
00:45
So we try to eliminate p, we can multiply the first equation here by 3, and the second equation by negative 5, right? because then we'd have, well, 3 times 5 p is a 15 p...