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angelanasevatianova3
@angelanasevatianova3
January 2023
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завдання 6клас систр достала со своим "помоги"
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dikov66666
1.а. 7х+6х= 13х
б.0,5у-0,3у= 0,2у
в.2а-9а= -7а
г.-5с-4с= -9с
2.а. 2а+6а+5= 8а+5
б.х-5+2х+4= 3х-1
в.-а+ху+7а-3ху= 6а-2ху
г.9х-3(3х-4)= 9х-9х+12= 0+12 = 12
3.а. а-(б-1,7)= а-б+1,7
б.6(б-4)= 6б-24
в.0,5+(0,7-1,5)= 0,5+0,7+1,5= 1,2+1,5= 1,7
4.3(2-с)-4(с+3)= 6-с-4с+12= 18-5с=
18-5•(-5)= 18+25= 43
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Answers & Comments
б.0,5у-0,3у= 0,2у
в.2а-9а= -7а
г.-5с-4с= -9с
2.а. 2а+6а+5= 8а+5
б.х-5+2х+4= 3х-1
в.-а+ху+7а-3ху= 6а-2ху
г.9х-3(3х-4)= 9х-9х+12= 0+12 = 12
3.а. а-(б-1,7)= а-б+1,7
б.6(б-4)= 6б-24
в.0,5+(0,7-1,5)= 0,5+0,7+1,5= 1,2+1,5= 1,7
4.3(2-с)-4(с+3)= 6-с-4с+12= 18-5с=
18-5•(-5)= 18+25= 43