document.write( "Question 762542: determine the number of terms in finite arthmetic sequence.
\n" ); document.write( "-6,-3,0,...,222
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Algebra.Com's Answer #464036 by josgarithmetic(39618)\"\" \"About 
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What is the general term? First term is -6 and common difference is +3.\r
\n" ); document.write( "\n" ); document.write( "Any term a is \"a=%28-6%29%2B%283%29%2A%28n-1%29\"
\n" ); document.write( "\"a=-6%2B3%28n-1%29.\"\r
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\n" ); document.write( "\n" ); document.write( "If a=222, then you find the value of n by equating the formula with the value of a.\r
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\n" ); document.write( "\n" ); document.write( "\"highlight%28-6%2B3%28n-1%29=222%29\"
\n" ); document.write( "Solve for n.
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