Respuesta:
x=39/7, y=22/7
Explicación paso a paso:
x+3y=15
2x-y=8
x=15-3y
2(15-3y)-y=8
30-6y-y=8
-7y=8-30
-7y=-22
y=-22/-7
y=22/7
x=15-3(22/7)
x=15-66/7
x=105/7-66/7
x=39/7
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Verified answer
Respuesta:
x=39/7, y=22/7
Explicación paso a paso:
x+3y=15
2x-y=8
x=15-3y
2(15-3y)-y=8
30-6y-y=8
-7y=8-30
-7y=-22
y=-22/-7
y=22/7
x=15-3(22/7)
x=15-66/7
x=105/7-66/7
x=39/7