7x + y = 29 ---- ( I ) x (-2)
3x + 2y = 36 ...... ( II )
-14x - 2y = - 58
3x + 2y = 36
'''''''''''''''''''''''''''''''''''
-11x = -22
x = 22/11
x = 2 ..... ( III )
III reemplazo en I
7x + y = 29
7(2) + y = 29
14 + y = 29
y = 29 - 14
y = 15
Eternamente axllxa
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7x + y = 29 ---- ( I ) x (-2)
3x + 2y = 36 ...... ( II )
-14x - 2y = - 58
3x + 2y = 36
'''''''''''''''''''''''''''''''''''
-11x = -22
x = 22/11
x = 2 ..... ( III )
III reemplazo en I
7x + y = 29
7(2) + y = 29
14 + y = 29
y = 29 - 14
y = 15
Eternamente axllxa