Question

RESOLVA AS INEQUAÇÕES(CALCULO)



a)2x+3>x-1


b)



5x+100>2x+200


c)3x+200
d)4x+2x+5x<200


e)9x+140>500

f)5x-3+x>2x+9

Answer 1

a)2x+3>x-1

   2x - x > - 1 - 3

   x > -4

b)  5x+100>2x+200

   5x - 2x > 200 - 100

          3x > 100

            x > 100/3

c)3x+200   ?????

d) 4x+2x+5x<200

   11x < 200

     x < 200/11

e)9x+140>500

   9x > 500 - 140

   9x > 360

     x > 360/9

     x > 40

f)5x-3+x>2x+9

 5x + x - 2x > 9 + 3

4x > 12

 x > 12/4

x > 3

bons estudos