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Question
solve using elimination.
-10x - 2y = 20
-4x - 2y = 2
(□, □)
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Step1: Subtract the two equations
$(-10x - 2y) - (-4x - 2y) = 20 - 2$
$-6x = 18$
Step2: Solve for x
$x = \frac{18}{-6} = -3$
Step3: Substitute x into second equation
$-4(-3) - 2y = 2$
$12 - 2y = 2$
Step4: Solve for y
$-2y = 2 - 12 = -10$
$y = \frac{-10}{-2} = 5$
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(-3, 5)