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Byju's Answer
Standard IX
Mathematics
General Form of a Linear Equation in Two Variables
Evaluate : 1...
Question
Evaluate :
1
3
x
+
y
+
1
3
y
−
y
=
3
4
;
1
2
(
3
x
+
y
)
−
1
2
(
3
x
−
y
)
=
−
1
8
Open in App
Solution
1
3
x
+
y
+
1
3
x
−
y
=
3
4
…………
(
1
)
1
2
(
1
3
x
+
y
−
1
3
x
−
y
)
=
−
1
8
⇒
1
3
x
+
y
−
1
3
x
−
y
=
−
1
4
…………
(
2
)
Adding equation
(
1
)
&
(
2
)
2
3
x
+
y
=
3
4
−
1
4
⇒
2
3
x
+
y
=
2
3
⇒
3
x
+
y
=
4
…………
(
3
)
Substracting equation
(
1
)
&
(
2
)
⇒
2
3
x
−
y
=
3
4
+
1
4
⇒
2
3
x
−
y
=
4
4
=
1
⇒
3
x
−
y
=
2
……………
(
4
)
Adding equation
(
3
)
&
(
4
)
6
x
=
6
⇒
x
=
1
y
=
4
−
3
x
=
4
−
3
=
1
So
x
=
1
;
y
=
1
.
Suggest Corrections
3
Similar questions
Q.
1/3y+ y + 1/3x-y=3/4
1/2(3x+y)-1/2(3x-y)=-1/8
Solve for x and y
Q.
Solve the following simultaneous equations:
1
3
x
+
y
+
1
3
x
−
y
=
3
4
,
1
2
(
3
x
−
y
)
−
1
2
(
3
x
−
y
)
=
−
1
8
Q.
Solve the following systems of equations:
1
3
x
+
y
+
1
3
x
−
y
=
3
4
1
2
(
3
x
+
y
)
−
1
2
(
3
x
−
y
)
=
−
1
8
Q.
Solve the following pairs of equations by reducing them to a pair of linear equations:
(i)
1
2
x
+
1
3
y
=
2
;
1
3
x
+
1
2
y
=
13
6
(ii)
2
√
x
+
3
√
y
=
2
;
4
√
x
−
9
√
y
=
−
1
(iii)
4
x
+
3
y
=
14
;
3
x
−
4
y
=
23
(iv)
5
x
−
1
+
1
y
−
2
=
2
;
6
x
−
1
−
3
y
−
2
=
1
(v)
7
x
−
2
y
x
y
=
5
;
8
x
+
7
y
x
y
=
15
(vi)
6
x
+
3
y
=
6
x
y
;
2
x
+
4
y
=
5
x
y
(vii)
10
x
+
y
+
2
x
−
y
=
4
;
15
x
+
y
−
5
x
−
y
=
−
2
(viii)
1
3
x
+
y
+
1
3
x
−
y
=
3
4
;
1
2
(
3
x
+
y
)
−
1
2
(
3
x
−
y
)
=
−
1
8
Q.
Solve the following pair of equations by reducing them to a pair of linear equations
:
1
(
3
x
+
y
)
+
1
(
3
x
−
y
)
=
3
4
,
1
2
(
3
x
+
y
)
−
1
2
(
3
x
−
y
)
=
−
1
8
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