document.write( "Question 820966: I am having a hard time understanding my algebra work. And the expression is y -7 and i have to figure out problems that will make this expression true. And i don't under stand how to do it \n" ); document.write( "

Algebra.Com's Answer #493821 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
You have to fix the foundation of your algebra
\n" ); document.write( "Maybe the way the question is being asked is
\n" ); document.write( "confusing.
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\n" ); document.write( "You are correct that $\"+y+-+7+\"$ is an expression
\n" ); document.write( "When you add on ( = something ) then it
\n" ); document.write( "becomes an equation.
\n" ); document.write( "--------------------
\n" ); document.write( "I can make this expression equal to anything I want.
\n" ); document.write( "Suppose I say:
\n" ); document.write( " $\"+y+-+7+=+99999+\"$
\n" ); document.write( "I must isolate $\"+y+\"$ on the left side, so I will add $\"+7+\"$
\n" ); document.write( "to both sides:
\n" ); document.write( " $\"+y+-+7+%2B+7+=+99999+%2B+7+\"$
\n" ); document.write( " $\"+y+=+100006+\"$
\n" ); document.write( "----------------
\n" ); document.write( "Like I said, I can put anything I want on the right side, but
\n" ); document.write( "it doesn't necessarily have to be true
\n" ); document.write( "Suppose I said:
\n" ); document.write( " $\"+y+-+7+=+y+-+6.999+\"$
\n" ); document.write( "It's just not a true statement, and there's no way to make it true
\n" ); document.write( "The following is true, but $\"y\"$ can be anything, not just a single number:
\n" ); document.write( " $\"+y+-+7+=+y+-+7+\"$
\n" ); document.write( "If I say $\"+y+=+-2972745196243+\"$ , that will work,
\n" ); document.write( "and so will $\"+y+=+837200106911153+\"$ or $\"+y+=+1+\"$
\n" ); document.write( "----------------
\n" ); document.write( "Hope this helps\r
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