Answer: y=7x+7
Explanation:
3x+y=2y-4x+7
3x+4x=2y-y+7
7x-7=y
y=7x-7 (1)
Hence, the equation of the line parallel to y=7x-7 is y=7x+b.
The equation y=7x+b is going through (-2,-7):
-7=7*(-2)+b
-7=-14+b
-7+14=-14+b+14
7=b
Hence,
y=7x+7
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