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Anonymous
y=-7 but I have no idea on how to get it
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7+2y=15subtract 7 from each side of the equal sign2y=8divide each side by 2y=4
No. They are parallel.
10-y=2y+3 10-3=2y+y 7=3y 7/3=y
x = -2 and y = 3
3x + 2y = 7