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Earn +20 ptsQ: How do you plot x plus y equals 9 x-y equals 7?
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Xy plus 7 equals 22 where y equals 3?
its 5 because if y is 3 then u have to ask yourself wat times 3 + 7 is 22
What are the solutions to the equations 3x -5y equals 16 and xy equals 7?
Equations: 3x-5y = 16 and xy = 7 Solutions: (7, 1) and (-5/3, -21/5)
What is 5 plus 7 plus 7 plus 5 equals?
It equals 24.
2 plus 3 equals 8 3 plus 7 equals 27 4 plus 5 equals 32 5 plus 8 equals 60 6 plus 7 equals 72 7 plus 8 equals what?
89
If y equals 2x plus 1 and x equals 4y-2 what is the value of xy?
We havey = 2x + 1 = 2(4y-2) + 1 = 8y - 3 iff 7y = 3 iff y = 3/7 iff x = 4y - 2 = 12/7 - 2 = -2/7(using "iff" for the double-arrow "is equivalent to" symbol which my PC won't copy).Thus xy = (-2/7)(3/7) = -6/7.
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