tammy2mca tammy2mca

17-11-2017
Mathematics

contestada

Solve the inequality
-8x - 10 > 7x + 20

A.) x < - 30
B.) x > - 2
C.) x > - 30
D.) x < - 2

Respuesta :

jairmendez589 jairmendez589

17-11-2017

see, mathpapa.com for all your mathematic and algebraic needs !
its x<-2

Answer Link

17-11-2017

First you must put all the x on one side:
-8x-10>7x+20
+10
-8x>7x+30
-7x
-15x>30
:(-15) --> When you multiply or divide in inequalities you must turn the ">" to "<":

x < -2

Answer: D.) x < -2

Answer Link

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