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Mathematics
OpenStudy (anonymous):

simplify 2- (2z-(3z-(-1z)-6z)-7z)-8z

OpenStudy (shubhamsrg):

start opening with innermost bracket..

OpenStudy (shubhamsrg):

i'll give it a beginning,,you continue.. 2- (2z-(3z+1z-6z)-7z)-8z => 2- ( 2z - ( -2z) -7z) - 8z ??

OpenStudy (anonymous):

thanks i figure it out

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