 Hello and welcome to this session. In this session we discussed the following question that says simplify 2x minus 3y minus 2z minus 2x plus y. Let's see the solution now. The given expression is 2x minus 3y minus 2z minus 2x plus y. To simplify this, first we will remove the innermost bracket, that is this bracket. This would be further equal to 2x minus 3y minus 2z. Now we have to remove this bracket and there is a minus sign preceding this bracket. So the signs of the terms inside this bracket would be changed. So this 2x would be minus 2x and plus y would be minus y. And now this would be further equal to 2x minus 3y. Now that we have to remove these brackets and there is a minus sign preceding this bracket. So the signs of the terms inside this bracket would be changed. And so we have 3y minus 2z plus 2x plus y. Now lastly we will remove this bracket and as there is a minus sign preceding this bracket. So the signs of all the terms inside this bracket would be changed. So it would be equal to 2x minus 3y plus 2z minus 2x minus y. And so this is equal to 2x minus 2x cancels minus 3y minus y would be minus 4y plus 2z. So minus 4y plus 2z is our final answer. This completes the session. Hope you have understood the solution of this question.