Respuesta:
9x+16y= 7. -3x+4y= 0
9x= 7-16y. x= 4y/3
x= 7-16y/9
9(4y/3)= 7-16y
36y/3= 7-16y
12y+16y= 7
28y= 7
y= 7/28
y= 1/4. x= 4.1/4/3
x= 1/3
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Respuesta:
9x+16y= 7. -3x+4y= 0
9x= 7-16y. x= 4y/3
x= 7-16y/9
9(4y/3)= 7-16y
36y/3= 7-16y
12y+16y= 7
28y= 7
y= 7/28
y= 1/4. x= 4.1/4/3
x= 1/3