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OpenStudy (anonymous):
What is the value of a in the following equation: 2a = -a + 9? 3 -6 -3 none of these
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OpenStudy (awesome781):
none of these
OpenStudy (phi):
2a = -a + 9 add +a to both sides what do you get ?
OpenStudy (awesome781):
or u could just plug in the numbers and see if both sides equal each other....more easier..
OpenStudy (awesome781):
That is what I did....
OpenStudy (anonymous):
@Awesome781 :)
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OpenStudy (phi):
2a = -a + 9 add +a to both sides 2a+a = -a + a + 9 on the left side , what is 2 a's plus 1 more a? on the right side what is 1 a take away 1 a leaving just the 9 ?
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