00:01
Hello everyone, this question we have to determine graphically the solution set for the system of inequalities.
00:06
So first convert into equalities minus x plus 4y equal to 7.
00:13
So this implies x is equal to 4y minus 7.
00:18
The substitute this x in this equation.
00:21
So we will be having 4 into 4y minus 7 minus 2y equal to minus 17.
00:27
So 16y minus 28 minus 2y equal to minus 17.
00:32
So we will be having 14y minus 17 plus 28.
00:37
So 14y or 28 minus 17 is 11.
00:42
So y is equal to 11 by 14.
00:46
So substitute y equal to 11 by 14 in x equal to 4y minus 7.
00:54
So x is equal to 4 11 by 14 minus 7 which is 44 by 14 minus 7.
01:03
22 by 22 is 27.
01:05
So 22 by 7 minus 7 that is 22 minus 49 divided by 7.
01:12
So that will give you 7 27 by 7.
01:16
So x is minus 27 by 7 y is equal to 11 by 14.
01:21
So if i draw graphically i will be.
01:24
So if i draw graphically this is the solution set.
01:30
So the second part.
01:31
So second part is this converting into equality.
01:39
So solving this we will be having mark this as 1 2.
01:45
So solving 1 and 2 i will be having 6 6 plus 3 y equal to minus 9 6 6 minus 10 y equal to 3.
01:55
So plus minus minus plus plus minus...