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Y - x = 9 and 8 = -2x - 4y (solve for y)

Y - x = 9 and 8 = -2x - 4y (solve for y)
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1 vote
Y - x = 9 and 8 = -2x - 4y
(solve for y)

User Vangie
by
8.6k points

1 Answer

6 votes
y - x = 9
-x = 9 + y
x = -9 - y

8 = -2x - 4y
8 = -2(-9 - y) - 4y
8 = 18 + 2y - 4y
-10 = -2y
10 = 2y
y = 5
User Niek Tax
by
7.6k points
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