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Use elimination to solve the system of equations:

3x + y = 10
- 4x - 2y = 2

Work:


Sagot :

4
x
+
y

2
z
=
0
4
x
+
y
-
2
z
=
0
,
2
x

3
y
+
3
z
=
9
2
x
-
3
y
+
3
z
=
9
,

6
x

2
y
+
z
=
0
-
6
x
-
2
y
+
z
=
0
x
+
2
y
=
4
x
+
2
y
=
4
,
2
x
+
4
y
=
8
2
x
+
4
y
=
8
3
x
+
y
=
4
3
x
+
y
=
4
,
6
x

7
y
=
2