Zadaanie w z ałczniku z nierównosci

Zadanie 1. a) 2x-3≤ -(2x+1)+2 2x-3≤ -2x-1+2 4x ≤ 4 x ≤ 1 b) 4(x-1) +1 ≤ 3(2x+1) 4x-4 ≤ 6x+3 2x ≥ -7 x ≥ -3,5 c) 3(2-x) > 2(3+x) -3x+6 > 2x+6 -5x > 0 x<0 d) 5x-4 < 3(x+2)- 2(x-1) 5x -4 < 3x+6 -2x +2 5x-4 < x+8 4x < 12 x < 3 e) 2(3x+2) -7 ≤ -3(2x-3) 6x+4 -7 ≤ -6x+9 12x ≤ 6 x ≤ ½ f) 6- 3/2x > 4-4/3x ½x > -2 x > -4 Zadanie 2. a) 7x+5 ≤ 4x+50 3x ≤ 45 x ≤ 15 b) 9x+3 > 8x+6 x > 3 c) 8x > 9x-9 x < 9 d) 9x -15 ≥ 4(2x-5) + 6x 9x -15 ≥ 8x- 20 +6x 9x -15 ≥ 14x- 20 -5x ≥ -5 x ≤ 1

1 . a ) 2x - 3 / - # c ) 3 ( 2- x ) > 2 ( 3 + x ) 6 - 3x > 6 + 2x - 3x - 2x > 6 + 6 - 5x > 12 / : - 5 x < 2 , 4 d ) 5x - 4 < 3 ( x + 2 ) - 2 ( x - 1 ) 5x - 4 < 3x + 6 - 2x +2 5x - 3x + 2x < 6 + 2 + 4 4x < 12 / : 4 x < 3 e ) 2 ( 3x + 2 ) - 7

zad1 a) 2x-3≤-(2x+1)+2 2x-3≤-2x-2+2 2x-3≤-2x+1 b)4x-3+1≤6x+3 c)6-3x>6+2x d)5x-44-1⅓x zad2 a)7x+5÷2/*2≤2x=25 14x+10≤2x+25 b)3x+1:2/*2>4x+3/*3 6x+2>12x+9 c)2/3x-2/9x>x-1:2/*2 6/9x-2/9x>2x-2 d)3x-5:2/*2≥2/3(2x-5)+x 6x-10>4/3x-10/3+x 6x-10>2⅓x-10/3