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-2(2x - { }) + 1 = 17 - 4x For what missing value is the equation an identity?
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-2(2x - { }) + 1 = 17 - 4x

For what missing value is the equation an identity?

User Israteneda
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When we put 8 in the bracket we can get the answer as 17 - 4x i.e Consider the LHS -2 ( 2x - 8) + 1 = -2 (2x-8) + 1 = -4x+16+1 = -4x + 17 = 17-4x = RHS LHS = RHS Proved
User Stephen ODonnell
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