Question: help 18. If B = x - 1 and A = 3x - x + 1, find an expression that equals 2.B - 2A in

help

help 18. If B = x - 1 and A = 3x

18. If B = x - 1 and A = 3x - x + 1, find an expression that equals 2.B - 2A in standard form

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