Question

Five times the sum of a number and 27 is greater than or equal to six times the sum of that number and 26. What is

the solution set of this problem?
(-0, -21)
(-00,-21]
[-21, +00)
(21, +00)

Answer 1

let the number be x

5(x+27)>6(x+26)

5x+135>6x+156

5x-6x>135-156

-x>-21

×<21

(21,+00)