Please help me! Sorry there are 4 questions I need to check my attempts with to see if I am on track. Thanks!!

1. 5-3[2(3x-4)+3]

2. Evaluate when x = -3 and y = 2

3x squared - 4y squared
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4x - 7y

3. -3/4y = -24

4. m + 1 + 5 = 2m - 1
______ _ _______
4 6 = 12