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Answer:-4Step-by-step explanation:We simplify inside the absolute value as our first step.-7 + 3 is -4.So we have -|-4|.A common mistake at this point in the problem is to change the minus a negative to plus a positive but don't fall into this trap. We must ignore the negative outside the absolute value until our very last step in this problem.So we take the absolute value of -4 which is 4 and we have -(4).Remember to bring down the negative!Notice that I used around the 4 as it comes out of the absolute value.So we have -(4) which is 4....