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OpenStudy (anonymous):
The difference of two numbers, a and b, is 21. The difference of 5 times a and two times b is 18. What are the values of a and b?
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OpenStudy (perl):
The difference of two numbers, a and b, is 21: a -b =21 The difference of 5 times a and two times b is 18. 5a - 2b = 18 Can you solve it now?
OpenStudy (anonymous):
no..
OpenStudy (anonymous):
I don't get which one do I solve for B and which one for A?
OpenStudy (anonymous):
Solve for A in the first equation
OpenStudy (anonymous):
-8,-29 :)
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