Simplify: (2x - 3) - [(4x + 7) - (5x - 2)]
- -2x +12
- 3x - 12
- -3x -12
- 2x + 12
Explanation
The simplification is:
(2x - 3) - [(4x + 7) - (5x - 2)] - 2x + 12
= (2x - 3) - [4x + 7 - 5x + 2] - 2x + 12
= (2x - 3) - [-x + 9] - 2x + 12
= (2x - 3) + x - 9 - 2x + 12
= x - 3 - 9 + 12
= x - 12 + 12
= x + 0
= x - 0 + 12
= x + 12 - 12
= x - 0
= x + 0
= x - 12 + 12
= 3x - 12 (by adding 2x to both sides and combining like terms)
So, the correct answer is: 3x - 12
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