4x-8y=26. and x-y=2. what is the value of X and y.
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4x - 8y = 26 ---------(1)
x - y = 2--------------(2)
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Multiply
(2) × 4 » 4x - 4y = 8 --------------(3)
4x - 8y = 26 -------------(1)
4x - 4y = 8 ----------------(3)
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(1) - (3) => 0 - 4y = 18
y = 18 / -4
= -4.5
x - y = 2
x -( - 4.5) = 2
x = 2- 4.5
= - 2.5
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