Question

7 + 2x > 5+x
3x + 2 < 8+x;
1-0,5.x <4- x
9 -2,8x > 6 - 1,3x:​

Answer 1

1)

2x - x > 5 - 7

x > -2

2)

3x - x < 8 + x

2x - x < 8

x < 8

3)

-0.5x + x < 4 - 1

0.5x < 3

x < 6

4)

9 - 2.8x > 6 - 1.3x

-2.8x + 1.3x > 6 - 9

-1.5x > -3

x > 2