document.write( "Question 328355: -11=7+3u forgot the rule to solve this can you show me how its done please \n" ); document.write( "

Algebra.Com's Answer #235177 by jessica43(140) $\"\"$ $\"About$

You can put this solution on YOUR website!
To solve this problem, you want to get u by itself on one side of the problem. So first, you want to subtract 7 from each side of the problem so the 7 on the right disappears:
\n" ); document.write( "-11 = 7 + 3u
\n" ); document.write( "-11 - 7 = 7 + 3u - 7
\n" ); document.write( "-18 = 3u
\n" ); document.write( "Now divide each side by 3 to get u by itself:
\n" ); document.write( "-18/3 = 3u/3
\n" ); document.write( "-6 = 1u
\n" ); document.write( "-6 = u
\n" ); document.write( "So your answer is u = -6. \n" ); document.write( "

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