Respuesta:
1)
-4x + 12y = -18
2x + 13y = 17
x = 219/38
y = 8/19
----------------------------
2)
4x - 2y = 8
3x + 6y = 12
x = 12/5
y = 4/5
------------------------------
3)
2x + 3y = 12
x - y = 1
x = 3
y = 2
--------------------------------
4)
x + y = 9
2x + 6y = 8
x = 23/2
y = -5/2
5)
2x + 5y = 11
4x - 3y = -4
x = 1/2
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Verified answer
Respuesta:
1)
-4x + 12y = -18
2x + 13y = 17
x = 219/38
y = 8/19
----------------------------
2)
4x - 2y = 8
3x + 6y = 12
x = 12/5
y = 4/5
------------------------------
3)
2x + 3y = 12
x - y = 1
x = 3
y = 2
--------------------------------
4)
x + y = 9
2x + 6y = 8
x = 23/2
y = -5/2
--------------------------------
5)
2x + 5y = 11
4x - 3y = -4
x = 1/2
y = 2