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OpenStudy (anonymous):
Which of the following represents the variable in this equation? 2d + 7 = 19
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OpenStudy (dayakar):
d
OpenStudy (anonymous):
ya the variable is D but if you need to solve it the answer is d=6
OpenStudy (mudslinger):
13
OpenStudy (texaschic101):
the variable is D. It is an unknown number that is replaced by the variable D. but if you have to solve for the variable : 2d + 7 = 19 -- subtract 7 from both sides 2d = 19 - 7 2d = 12 -- divide both sides by 2 d = 6
OpenStudy (mudslinger):
i messed up i did it in my head it is 6
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