Предмет: Математика, автор: sofyabaskakova

50 БАЛЛОВ, помогите с 1 вариантом, тут есть ответы (возможно не правильные для запутывания )

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Ответы

Автор ответа: karkushaStepashka
0

Пошаговое объяснение:

1) 3(х+3)-3(4-х)-х-3= 3х+9-12+3х-х-3=5х-6

2) 3(х+5)-(4-х)-(1+3)х-3= 3х+15-4+х-4х-3= 8

3) 2(х+4)-3(2-х)-х-4= 2х+8-6+3х-х-4= 4х-2= 2(2х-1)

4) х+1-5(2-х)-х(5+1)-1= х+1-10+5х-6х-1= -10

5) х+3-(2-х)-х-4= 3-2+х-4= х-3

6) 4(х+3)-(5-х)-х-4= 4х+12-5+х-х-4= 4х+3

7) 3(х+3)-4(1-х)-(4+3)х-1= 3х+9-4+4х-7х-1= 4

8) 5(х+5)-3(3-х)-х-3= 5х+25-9+3х-х-3= 7х+13

9) 2(х+2)-5(2-х)-(5+2)х-1= 2х+4-10+5х-7х-1= -7

10) 2(х+4)-4(5-х)-(4+2)х-3= 2х+8-20+4х-6х-3= -15


NNNLLL54: в 4 примере в конце (-5), а не (-1)
Автор ответа: NNNLLL54
0

1)\; 3(x+3)-3(4-x)-x-3=3x+9-12+3x-x-3=5x-6\\\\2)\; 3(x+5)-(4-x)-(1+3)x-3=3x+15-4+x-4x-3=8\\\\3)\; 2(x+4)-3(2-x)-x-4=2x+8-6+3x-x-4=4x-2\\\\4)\; x+1-5(2-x)-(5+1)x-5=x+1-10+5x-6x-5=-14\\\\5)\; x+3-(2-x)-x-4=x+3-2+x-x-4=x-3\\\\6)\; 4(x+3)-(5-x)-x-4=4x+12-5+x-x-4=4x+3\\\\7)\; 3(x+3)-4(1-x)-(4+3)x-1=3x+9-4+4x-7x-1=4\\\\8)\; 5(x+5)-3(3-x)-x-3=5x+25-9+3x-x-3=7x+13

9)\; 2(x+2)-5(2-x)-(5+2)x-1=2x+4-10+5x-7x-1=-7\\\\10)\; 2(x+4)-4(5-x)-(4+2)x-3=2x+8-20+4x-6x-3=-15

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