document.write( "Question 1185748: which term in the sequence -3, -6, -9, -12...is -30?\r
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Algebra.Com's Answer #816580 by math_helper(2461) $\"\"$ $\"About$

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document.write( "First term  = -3
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document.write( "2nd term  = -6\r
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document.write( "Common difference is -3\r
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document.write( "Nth term is  = -3 - 3*(N - 1)\r
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document.write( "So we set  and solve for N:
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document.write( "-30 = -3 + -3*(N-1)
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document.write( " -27 = -3*(N-1)
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document.write( " N-1 = 9
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document.write( "  N = 10  (the 10th term is -30) \n" );
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