Question

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Dau coroana ​

Answer 1

a)12

b)4

c)4

d)4

a)2·(-x+4)=-3(x+1)+23

-2x+8=-3x+(-3)+23

-2x+8=-3x-3+23

-2x+3x=-3+23-8

1x=12

x=12

b)|2x-1|=7

2x-1=7

2x=7+1

2x=8

x=8/2

x=4

c)2x-1_<11-x

2x+x_<11+1

3x_<12

x_<12/3

x_>4

d)|x-1|_<3

x-1_<3

x_<3+1

x_<4

x_>4

Sper că te-am ajutat!