How do you solve 2\leq - 4+ \frac { 8x } { 9}?

2 Answers
Sep 20, 2017

xge27/4 or 6 3/4 or 6.75

Explanation:

First, we switch sides to -4+(8x)/9ge2 and add 4 to both sides.

-4+(8x)/9color(blue)+color(blue)4ge2color(blue)+color(blue)4.

Simplify it to be (8x)/9ge6. Multiply both sides by 9.
(color(blue)9color(blue)*8x)/9ge6color(blue)*color(blue)9 which is 8xge54.

Next we divide both sides by 8.

(8x)/color(blue)8ge54/color(blue)8.

SImplify it to be xge27/4 or 6 3/4 or 6.75.

Sep 20, 2017

x>=27/4

Explanation:

"add 4 to both sides of the inequality"

2+4<=cancel(-4)cancel(+4)+(8x)/9

rArr6<=(8x)/9

"multiply both sides by 9"

(9xx6)<=cancel(9)xx(8x)/cancel(9)

rArr54<=8x

"divide both sides by 8"

54/8<=x

27/4<=xrArrx>=27/4