document.write( "Question 157292: -3x+b=6x for x\r
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document.write( "-5a+y=-54 for y \n" );
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Algebra.Com's Answer #115918 by midwood_trail(310)![]() ![]() ![]() You can put this solution on YOUR website! (1) 3x + b = 6x solve for x\r \n" ); document.write( "\n" ); document.write( "To solve for a variable means to place the letter alone on one side of the equation.\r \n" ); document.write( "\n" ); document.write( "We need to ISOLATE x.\r \n" ); document.write( "\n" ); document.write( "Let's begin by subtracting 3x from both side.\r \n" ); document.write( "\n" ); document.write( "We now have this:\r \n" ); document.write( "\n" ); document.write( "b = 6x - 3x\r \n" ); document.write( "\n" ); document.write( "b = 3x\r \n" ); document.write( "\n" ); document.write( "To find x, divide both sides of the equation by 3.\r \n" ); document.write( "\n" ); document.write( "b/3 = x....This is the value of x and your answer.\r \n" ); document.write( "\n" ); document.write( "Do you see that x is left alone on the right side?\r \n" ); document.write( "\n" ); document.write( "I just solved for x.\r \n" ); document.write( "\n" ); document.write( "=================================================\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(2) -5a + y = -54 solve for y\r \n" ); document.write( "\n" ); document.write( "The same applies here.\r \n" ); document.write( "\n" ); document.write( "ISOLATE y: put it all alone on one side of the equation.\r \n" ); document.write( "\n" ); document.write( "To find y, simply add 5a to both sides.\r \n" ); document.write( "\n" ); document.write( "y = 5a - 54\r \n" ); document.write( "\n" ); document.write( "Do you see that y is now alone (or ISOLATED) on the left side of the equation?\r \n" ); document.write( "\n" ); document.write( "That's what it means to solve for a variable, ANY VARIABLE.\r \n" ); document.write( "\n" ); document.write( "Did you follow?\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |