document.write( "Question 981963: Please help me solve this problem. Find the value of \"a\" if a line containing the point (a, -3a) has a y-intercept of 7 and a slope of -2/3 \n" ); document.write( "
Algebra.Com's Answer #602844 by josgarithmetic(39620)\"\" \"About 
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Slope-intercept form equation, y=mx+b
\n" ); document.write( "\"y=-%282%2F3%29x%2B7\"\r
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\n" ); document.write( "\n" ); document.write( "If you have a point as (a,-3a), then you have x=a and y=-3a, which you substitute into the equation.\r
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\n" ); document.write( "\n" ); document.write( "\"-3a=-%282%2F3%29a%2B7\"
\n" ); document.write( "and now solve this for a.
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