document.write( "Question 265329: Variables on both sides? Can someone expain to me how to solve this? I'm trying to help my daughter with her home work and am not familar with this.\r
\n" ); document.write( "\n" ); document.write( "Probem:
\n" ); document.write( "7x-1=-5+3x\r
\n" ); document.write( "\n" ); document.write( "Thanks
\n" ); document.write( "

Algebra.Com's Answer #195116 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Problem:
\n" ); document.write( "7x - 1 = -5 + 3x
\n" ); document.write( ":
\n" ); document.write( "Perform the necessary operations (+,-,/*) on both sides of the equation to get the unknown (x) on one side by itself, usually on the left but doesn't have to be
\n" ); document.write( "7x - 1 = -5 + 3x
\n" ); document.write( "Subtract 3x from both sides
\n" ); document.write( "7x - 3x - 1 = -5 + 3x - 3x
\n" ); document.write( ":
\n" ); document.write( "which is
\n" ); document.write( "4x - 1 = -5 + 0
\n" ); document.write( ";
\n" ); document.write( "or just
\n" ); document.write( "4x - 1 = -5
\n" ); document.write( ";
\n" ); document.write( "add 1 to both sides
\n" ); document.write( "4x - 1 + 1 = -5 + 1
\n" ); document.write( "4x + 0 = -4
\n" ); document.write( ";
\n" ); document.write( "or just
\n" ); document.write( "4x = -4
\n" ); document.write( ":
\n" ); document.write( "Divide both sides by 4
\n" ); document.write( "\"4%2F4\"x = \"%28-4%29%2F4\"
\n" ); document.write( "1x = -1
\n" ); document.write( "or just
\n" ); document.write( "x = -1
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Check solution by substituting for x in the original equation
\n" ); document.write( "7x - 1 = -5 + 3x
\n" ); document.write( "7(-1) - 1 = -5 + 3(-1)
\n" ); document.write( "do the math
\n" ); document.write( "-7 - 1 = -5 - 3
\n" ); document.write( "which is
\n" ); document.write( "-8 = -8, equality confirms our solution of x = -1
\n" ); document.write( "
\n" );