Solve the equation
X-y=3 and 2x+y=9
Answers
Answered by
0
Answer:
x
=
4
y
=
1
Explanation:
Given -
x
=
y
+
3
----------------(1)
2
x
+
y
=
9
----------------(2)
Substitute
x
=
y
+
3
in equation (2)
2
(
y
+
3
)
+
y
=
9
2
y
+
6
+
y
=
9
3
y
+
6
=
9
3
y
=
9
−
6
=
3
y
=
3
3
=
1
y
=
1
Substitute
y
=
1
in equation (2)
x
=
1
+
3
=
4
x
=
4
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