[tex]-2-7-\left[-3+1-\left(1+2-3\right)+1\right]-\left[-7+4-\left(2+5\right)\right]\\=-2-7-\left(-1\right)-\left[-7+4-\left(2+5\right)\right]\\=-2-7-\left(-1\right)-\left(-10\right)\\=-9-\left(-1\right)-\left(-10\right)\\=-9+1-\left(-10\right)\\=-8-\left(-10\right)\\=-8+10\\[/tex]
= 2
Espero que te sirva✌
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[tex]-2-7-\left[-3+1-\left(1+2-3\right)+1\right]-\left[-7+4-\left(2+5\right)\right]\\=-2-7-\left(-1\right)-\left[-7+4-\left(2+5\right)\right]\\=-2-7-\left(-1\right)-\left(-10\right)\\=-9-\left(-1\right)-\left(-10\right)\\=-9+1-\left(-10\right)\\=-8-\left(-10\right)\\=-8+10\\[/tex]
= 2
Espero que te sirva✌