Easy
What is the result of subtracting the second equation from the first? 2x+7y=−8,2x−5y=−12 x+7 y=-8 ,\quad 2 x-5 y=-12x+7y=−8,2x−5y=−1
y=−712y=-\frac{7}{12}y=−127
y=127y= \quad \frac{12}{7}y=712
y=−127y=-\frac{12}{7}y=−712
y=712y=\frac{7}{12}y=127
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