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Платон08
@Платон08
August 2022
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А)2а-(7-2а)
Б)-2а-2(-а+7)+14
В)3(-2Х-4+2(3Х+8)+2Х
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irinaorlova2
А) 2а-(7-2а)=2а-7+2а=2а-7
б)-2а-2(-а+7)+14=-2а+2а-14+14=0
в)3*(-2х-4+2(3х+8))+2х=3(-2х-4+6х+16))+2х=3(4х+14)+2х=12х+42+2х=
=14х+42
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Answers & Comments
б)-2а-2(-а+7)+14=-2а+2а-14+14=0
в)3*(-2х-4+2(3х+8))+2х=3(-2х-4+6х+16))+2х=3(4х+14)+2х=12х+42+2х=
=14х+42