document.write( "Question 560278: how do u solve a question that state ; a student has scores of 88, 92, and 86 on first 3 tests. whats score must he get on the forth so her average is 90 \n" ); document.write( "
Algebra.Com's Answer #363826 by Earlsdon(6294)\"\" \"About 
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Let the score on the fourth(sp) test be x, then:
\n" ); document.write( "\"%2888%2B92%2B86%2Bx%29%2F4+=+90\" Add the integers and multiply both sides by 4.
\n" ); document.write( "\"266%2Bx+=+360\" Subtract 266 from both sides.
\n" ); document.write( "\"x+=+94\"
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