Algebra
posted by steph .
 20> 8 +7a
Solve inequalities like you would an equation, EXCEPT if you multiply or divide by a negative number, reverse the inequality sign.
Let's look at your problem:
 20 > 8 + 7a
First subtract 8 from both sides (whatever operation you do to one side you must do to the other side as well):
 20  8 > 8  8 + 7a
 28 > 7a
Divide both sides by 7 to get the variable by itself:
 28 / 7 > 7a / 7
 4 > a
I hope this helps.
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