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OpenStudy (anonymous):
simplify 2- (2z-(3z-(-1z)-6z)-7z)-8z
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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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