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maryama2005061
@maryama2005061
August 2022
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Упростите выражения. Вычислите значения при а=13 1)5а+2а-27; 2)17а-6а+28-11; 3)3(5а-2а)-32; 4)5(2а+7а)-32а+41;
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tatianagri2013
при а=13
1)5а+2а-27= 7а-27=7*13-27=91-27=64
2)17а-6а+28-11=11а+17=11*13+17=143+17=160
3)3(5а-2а)-32=3*(3а)-32=3*(3*13)-32=3*39-32=117-32=85
4)5(2а+7а)-32а+41=5*(9а)-32а+41=5*(9*13)-32*13+41=5*117-416+41=585-416+41=210
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Answers & Comments
1)5а+2а-27= 7а-27=7*13-27=91-27=64
2)17а-6а+28-11=11а+17=11*13+17=143+17=160
3)3(5а-2а)-32=3*(3а)-32=3*(3*13)-32=3*39-32=117-32=85
4)5(2а+7а)-32а+41=5*(9а)-32а+41=5*(9*13)-32*13+41=5*117-416+41=585-416+41=210