SOLUTION: I need help with solving an inequity, please help. Inequity to solve: 5a-100<20a

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Question 403055: I need help with solving an inequity, please help.
Inequity to solve:
5a-100<20a
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
5a-100<20a
add 100 to both sides
5a-100+100<20a+100
5a<20a+100
add -20a to both sides
5a-20a<20a-20a+100
-15a<100
/-15
a>100/-15
a>-20/3