RESPUESTA:
-3(4x + 7y = 9)
4(3x + 6y = 10)
_____________
-12x - 21y = -27
12x + 18y = 40
-3x = 13
x = -13/3
.....
3x + 6y = 10
3(-13/3) + 6y = 10
-13 + 6y = 10
6y = 23
y = 23/6
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Verified answer
RESPUESTA:
-3(4x + 7y = 9)
4(3x + 6y = 10)
_____________
-12x - 21y = -27
12x + 18y = 40
_____________
-3x = 13
x = -13/3
.....
3x + 6y = 10
3(-13/3) + 6y = 10
-13 + 6y = 10
6y = 23
y = 23/6