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Which is a solution to the equation 5x - 2y = -9? A. (2, -4) B. (-1, 2) C. (-2, 5) D. (1, -3)
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where is the second equation ?
That is all
oh ok, then simply plugin each point and see which one satisfies
Okay
lets see if first option satisfies A. (2, -4) 5x - 2y = -9 plugin x = 2, y = -4 : 4(2) - 2(-4) = -9 8 + 8 = -9 16 = -9 FALSE
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so option A is not ur answer
similarly, test next option
B. (-1, 2) 5x - 2y = -9 plugin x = -1, y = 2 5(-1) -2(2) = -9 -5 - 4 = -9 -9 = -9 TRUE
so, option B is ur answer
see if that makes some sense
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Okay thanks!!!!
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