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If x+y = 3 and y times x = 2 then y = 1.
y equals x-4 plus 2 is the same as y = x-2. You just translate the graph of y=x, 2 units to the right, OR 2 down.
y = x + 2 y = -x + 4 x + 2 = -x + 4 2x + 2 = 4 2x = 2 x = 1 y = x + 2 y = 1 + 2 y = 3 (1, 3)
-6/y=5/-2 5y=12 y=12/5
The solution is: x = 1 and y = -1