Question

6,3+9x<0 4x+14>=-2-0,8x 4(7-5x)<6(4x+9) -5x+4/12>=-1

Answer 1

Ответ:

1) 6,3+9х<0

9х<-6,3

х<-0,7

2)4х+14>=-2-0,8х

4,8х>=-16

х >= - 10÷3(в виде дроби запиши)

Дальше лень)

Answer 2

To solve these inequalities, you can follow similar steps for each one. Let's solve them one by one:

1. 6 + 3x + 9x < 0:

Combine like terms: 6 + 12x < 0

Subtract 6 from both sides: 12x < -6

Divide both sides by 12. Remember to reverse the inequality when dividing by a negative number: x < -6/12 x < -1/2

2. 4x + 14 > -2 - 0.8x:

Combine like terms: 4x + 0.8x > -2 - 14

Simplify the left side: 4.8x > -16

Divide both sides by 4.8: x > -16/4.8 x > -40/12 x > -10/3

3. 4(7 - 5x) < 6(4x + 9):

Distribute on both sides of the inequality: 28 - 20x < 24x + 54

Combine like terms: 28 - 54 < 24x + 20x

-26 < 44x

Divide both sides by 44 (remember to reverse the inequality since you're dividing by a negative number): -26/44 > x

Simplify the fraction: -13/22 > x

4. -5x + 4/12 > -1:

First, simplify the fraction on the left side: -5x + 1/3 > -1

Subtract 1/3 from both sides: -5x > -1 - 1/3

Combine the constants on the right side: -5x > -3/3 - 1/3 -5x > -4/3

Now, divide by -5. Remember to reverse the inequality when dividing by a negative number: x < (-4/3) / (-5) x < (4/3) * (1/5) x < 4/15

So, the solutions to the inequalities are:

1. x < -1/2
2. x > -10/3
3. x > -13/22
4. x < 4/15