Question

resolva as inequações

a)2X+5<-3X+40
b)6X-4X+2>100
c)7X-9<2X+16
d)8X-10>2X+8
e)3X+7<-4X+8

por favor me ajudem.é para hj.​

Answer 1

Resposta:

a)2X+5<-3X+40

2x+3x<40-5

5x<35

x<35/5

x<7

b)6X-4X+2>100

6x-4x>100-2

2x>98

x>98/2

x>49

c)7X-9<2X+16

7x-2x<16+9

5x> 25

x>25/5

x>5

d)8X-10>2X+8

8x-2x>8+10

6x>18

x>18/6

x>3

e)3X+7<-4X+8

3x+4x>8-7

7x>1

x>1/7