1) The system of equations 2x - 11=3 and 4x - 2y=7 is solved to find x=1 and y=2. 2) A second system of equations x=3-1 and -2(4)-(-1)(7) is solved to find x=-1. 3) A third system of equations y=2(7)-(3)(4) is solved to find y=2.

1. 1) 2x - 11=3 s= 0
2) 4x - 2y=7 x= 1
y= 2
x y
s= 2 -1 =
(2)(-2) - (-1)(4)
4 - 4
4 -2 0
T.1 Y
x= 3 -1 =
(-2)(4) - (-1)(7)
-8 - -7
7 -2 = -1
X T.I
y= 2 3 =
(2)(7) - (3)(4)
14 - 12
4 7 = 2
-100%
-80%
-60%
-40%
-20%
0%
20%
40%
60%
80%
100%
= 0 = = = =
y -1 -2 Y -1 -2 T.1 3 7
x 2 4 T.1 3 7 X 2 4
Series2
Series1