Answer:
-1
Explanation:
1) -6x+5y= 1
6x+4y= -10 -6x and 6x cancel out
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9y= -9
y= -1
9y ÷ 9 causes the 9 to cancel out.
there and then what you do to one side you do to the other so -9 ÷ 9 is -1, so y= -1
y=-1
-6x+5y=1
(+) 6x+4y+-10
9y=-9
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9 9
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