Asked 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.
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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