document.write( "Question 261130: Marks: 1 Given the equation 4x + 7y = 21, Find y when x = 14. \n" ); document.write( "

Algebra.Com's Answer #192367 by unlockmath(1688) $\"\"$ $\"About$

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Hello,
\n" ); document.write( "I'll march you through the steps so you can do future problems like this.
\n" ); document.write( "4x + 7y = 21, Find y when x = 14. Plug in 14 for x like this:
\n" ); document.write( "4(14)+ 7y = 21 Rewritten as:
\n" ); document.write( "56+7y = 21 Now we subtract 56 from both sides to be:
\n" ); document.write( "7y=-35 Then we divide each side by 7 to result in:
\n" ); document.write( "y=-5
\n" ); document.write( "We can check to see if this is right by plugging the answer into the original problem. I'll let you do that.
\n" ); document.write( "RJ
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