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OpenStudy (anonymous):
will medal usercode3rror
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OpenStudy (anonymous):
OpenStudy (anonymous):
$2a+2a$2a+2a $\mathrm{Add\:similar\:elements:}\:2a+2a=4a$Add similar elements: 2a+2a=4a $=4a$=4a
OpenStudy (anonymous):
its 4a
OpenStudy (anonymous):
A
OpenStudy (anonymous):
yea
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OpenStudy (anonymous):
okie dokie
OpenStudy (anonymous):
np
OpenStudy (anonymous):
You can use the distributive axiom in reverse: 2a + 2a = (2+2)a = 4a
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