How do you solve and graph the compound inequality #2x+5<=11# and #4(x-1)+12>=0#?

1 Answer
Nghi N.
Jul 14, 2015

Solve system of linear equations in one variable:
2x + 5 <= 11
4(x - 1) + 12 >= 0

Explanation:

(1) #2x + 5 <= 11 --> 2x <= 6 --> x <= 3#

(2) #4x - 4 + 12 >= 0 --> 4x >= - 8 --> x >= - 2#

------------|-2======|0===========|3--------------

Answer: closed interval [-2, 3]. The 2 critical points (-2) and (3) are included in the solution set.

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