Correct: 3x + 12 , 3 x n, 4 x 32p, 3x + 15 y -19, 3x + 15 y , x2 + 13, 3x2 + y, 12 y - 13 , x2 + 13y - x2, x2 ( x +1), Incorrect: 130 = 12 y, 3 x N =21 , 13 - x = 12 , x-y=13, 14 (x-1) = 2, 13 x2= 1, 15p - 17 = 123,

Ffynone House Maths: Hit the expressions, avoid the equations

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