(b) Solve the following equations simultaneously using Cross Multiplication method:
-2x + 3y = -5; x+2y +8=0
Answers
Answered by
0
Answer:
I
f
2
x
2
−
3
x
y
+
y
2
+
x
+
2
y
−
8
=
0
t
h
e
n
d
y
d
x
=
A.
3
y
−
4
x
−
1
2
y
−
3
x
+
2
B.
3
y
+
4
x
+
1
2
y
+
3
x
+
2
C.
3
y
−
4
x
+
1
2
y
−
3
x
−
2
D.
3
y
−
4
x
+
1
2
y
+
3
x
+
2
Right Answer is: A
SOLUTION
2
x
2
−
3
x
y
+
y
2
+
x
+
2
y
−
8
=
0
⇒
4
x
−
3
(
y
+
x
y
1
)
+
2
y
.
y
1
+
1
+
2.
y
1
=
0
⇒
y
1
=
3
y
−
4
x
−
1
2
y
−
3
x
+
2
Step-by-step explanation:
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