document.write( "Question 73447This question is from textbook
\n" ); document.write( ": Please help me with this problem\r
\n" ); document.write( "\n" ); document.write( "SOlve by substitution:\r
\n" ); document.write( "\n" ); document.write( "b = -2c + 4
\n" ); document.write( "2c + b = 4 \n" ); document.write( "
Algebra.Com's Answer #52575 by ptaylor(2198)\"\" \"About 
You can put this solution on YOUR website!
SOlve by substitution:
\n" ); document.write( "b = -2c + 4-----------------------------eq1
\n" ); document.write( "2c + b = 4--------------------------------eq2\r
\n" ); document.write( "\n" ); document.write( "Substitute b=-2c+4 from eq1 into eq2 and we get:\r
\n" ); document.write( "\n" ); document.write( "2c-2c+4=4
\n" ); document.write( "0+4=4\r
\n" ); document.write( "\n" ); document.write( "This system of equations has no solution. Why???????????????
\n" ); document.write( "Because b=-2c+4 and 2c+b=4 are the same, identical equation\r
\n" ); document.write( "\n" ); document.write( "Lets look at eq1
\n" ); document.write( "b=-2c+4 add 2c to both sides\r
\n" ); document.write( "\n" ); document.write( "b+2c=-2c+2c+4 collect like terms\r
\n" ); document.write( "\n" ); document.write( "b+2c=4 or 2c+b=4-----------------same as eq2\r
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\n" ); document.write( "\n" ); document.write( "Hope this helps----ptaylor
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