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denis1999978
@denis1999978
October 2021
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Упростите выражение: а) 2х – 3у – 11х + 8у; б) 5(2а + 1) – 3; в) 14х – (х – 1) + (2х + 6). помогите пож очень надо
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Laviss
А)
2х – 3у – 11х + 8у= -9х+5у
б)
5(2а + 1) – 3= 10а+5-3= 10а+2= 2(5а+1)
в) 14х – (х – 1) + (2х + 6) = 14х-х+1+2х+6= 15х+7
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Answers & Comments
б)5(2а + 1) – 3= 10а+5-3= 10а+2= 2(5а+1)
в) 14х – (х – 1) + (2х + 6) = 14х-х+1+2х+6= 15х+7