4x+7y=20 given y=336/199 find the value x
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Answer:
4x + 7y = 20
=> 4x + 7(336/199) = 20
=> 4x + 2352/199 = 20
=> 4x = 20 - 2352/199
=> 4x = 1628/199
=> x = 1628/796 = 2.045 = 2 36/796
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