book Maths Puzzle Numerical Ability

I need help with some Pre-Algebra Eqautions

1. 3x - 5 - 2x = 8 - 9


2. 8x + 7 - 7x + 2 = -3


3. 3x + 4x + 9 = 2(x - 3)

PLEASE, PLEASE, PLEASE HELP1

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