document.write( "Question 66181: –3(10x – 3) + 10(3x – 3) = x – 7 \n" ); document.write( "

Algebra.Com's Answer #46911 by algebrapro18(249) $\"\"$ $\"About$

You can put this solution on YOUR website!
–3(10x – 3) + 10(3x – 3) = x – 7
\r
\n" ); document.write( "\n" ); document.write( "using the distributive law we get:
\n" ); document.write( "-30x + 9 + 10x - 30 = x - 7
\r
\n" ); document.write( "\n" ); document.write( "now combining like terms:
\n" ); document.write( "-20x - 21 = x - 7
\r
\n" ); document.write( "\n" ); document.write( "now adding 20x to both sides:
\n" ); document.write( "-21 = 21x - 7
\r
\n" ); document.write( "\n" ); document.write( "now adding 7 to both sides:
\n" ); document.write( "-14 = 21x
\r
\n" ); document.write( "\n" ); document.write( "now dividing boths sides by 21:
\n" ); document.write( "-2/3 = x \n" ); document.write( "

\n" );