Question

Practice Set 1.4
Solve the following simultaneous equations.
8 5
; -+-= 77
X y
23
= 15
;
(1)
V
2
15
5
-4
=-2
(2)
10
+
x+y x-y
y x y
x+y x-y
31
27
=85
+
=89
27 31
x-
2y+3
+
(3)
x-
2y+3
II
+
-
1
1
2(3x + y) 2(3x - y)
1 1 3
4)
3x + y 3x - y 4
8
19 <<UKKUE I want full solution ​

Answer 1

Answer:

what the hell question is this