How do you solve #17x + 4 >= 15 - 5x#?

2 Answers
Oct 27, 2017

Solution: #x>= 0.5 or [0.5 ,oo)#

Explanation:

#17x +4 >= 15 -5x or 17x +5x >= 15 -4# or

#22x >= 11 or x >= 11/22 or x>= 1/2 or x>= 0.5 #

Solution: #x>= 0.5 or [0.5 ,oo)# [Ans]

Oct 27, 2017

#x >= 1/2#

Explanation:

Things to remember when working with inequalities
You can do the following to both sides of an inequality without effecting the validity or direction of the inequality.

  • Add or subtract the same amount to both sides.
  • Multiply or divide both sides by any amount that is greater than zero

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Given
#color(white)("XXX")17x+4 >= 15-5x#

Adding #5x# to both sides
#color(white)("XXX")22x+4 >= 15#

Subtracting #4# from both sides
#color(white)("XXX")22x >= 11#

Divide both sides by #22#
#color(white)("XXX")x >= 1/2#