Question

POMOCY mam 1 godzine do zajęć

daje najjjjjjjjjjjjjjjjjjjjjjjjjjj

Answer 1

A.3x-7>0

3x>7

x>7/3

B.4-x≥2

-x≥2-4

-x≥-2

x≤2

C.4x-5/3<2x+2/3

4x-2x<2/3+5/3

2x<7/3

x<11/6

D. 2x-3<5-x

2x+x<5+3

3x<8

x<8/3

E. 3-4x≤6-x

-4x+x≤6-3

3x≤3

x≤1

J. 3(2x-4)≤x-(2x+1)

6x-12≤x-2x-1

6x+2x-x≤-1+12

7x≤11

x≤11/7

K. x-2/3(6-9x)>5x-1

x-4+6x>5x-1

x+6x-5x>-1+4

2x>3

x>3/2

L. 1/2(x-1/3(x-6))≥2+3x

1/2(x-1/3x+2)≥2+3x

1/2x-1/6x+1≥2+3x

1/2x-1/6x-3x≥2-1

-22/3x≥1

x≤3/22

M. 9(4/9-1/3(x+1))≥2(3x-π)+1

9(4/9-1/3x-1/3)≥6x-67/25+1

4-3x-3≥6x-67/25+1

-3x-6x≥67/25+1-4+3

-9x≥67/25

x≤67/225

N. 5½(1+x)-2(x+√2)<5/2(x+2⅕)

11/2+11/2x-2x-2√2<5/2x+51/2

11/2x-2x-5/2x<51/2-11/2+2√2

x<22√2

wszystko policzyłam i to tyle :)