Saturday, February 22, 2014

Solve, write solution using set builders notation. show work -8 - 11 (3x + 7)

-8 - 11 ( 3x + 7 ) < -40x -
9


First distribute the -11


By
distributing, you should get


-8 - 33x -77
< -40x -9
now combine the like terms ( - 8 with -77
)


By combining the like terms, you should
get


-85 - 33x < -40x - 9
add -85 on both sides


By adding, you should
get


-33x < -40x + 76
now add 40x on both sides


by adding, your
should get


7x < 76
divide both sides by 7


By dividing, you
should get


x < 76/7


your answer is
(76/7, -inf.)

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