Question

Resolva as Inequações

2x+5<-3x+10

6(x-1)-2(4x+2)>100

7x-9<2x+16

2x5>/-3x-40

6(x-5)-2(4x+2)>/80

Answer 1

2x + 5 < - 3x + 10
2x+ 3x < 10 - 5
5x < 5
x < 5/5
x < 1

6 ( x - 1 ) - 2 ( 4x + 2 ) > 100
6x - 6 - 8x - 4 >100
6x - 8x > 100+ 6 + 4
- 2x > 110 ( - 1 )
2x > 110
x > 110/2
x > 55

7x - 9 < 2x + 16
7x - 2x < 16 + 9
5x < 25
x < 25/5
x < 5
2x + 5 > - 3x - 40
2x + 3x > - 40 - 5
5x > - 45
x > - 45/5
x > - 9

6 ( x - 5 ) - 2 ( 4x + 2 ) > 80
6x - 30 - 8x - 4 > 80
6x - 8x > 80 + 30 + 4
- 2x > 114 ( - 1 )
2x > - 114
x > - 114/2
x > - 57