document.write( "Question 867073: i just had a math quiz about equivalent expressions. here are two problems i got wrong 4x+3=7 7x-x=7 can u you explain why my answers are not right and help me find correct equivalent expressions? it might help me understand if you use a model or make up a situation. \n" ); document.write( "
Algebra.Com's Answer #522697 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
No need for a model for this.\r
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\n" ); document.write( "\n" ); document.write( "Show what you did and identifying the mistake can be done.\r
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\n" ); document.write( "\n" ); document.write( "\"4x%2B3=7\".
\n" ); document.write( "How do you undo everything which was done to x? Whatever you do, do the same to BOTH sides of the equation.
\n" ); document.write( "For this equation use these number properties:
\n" ); document.write( "(*) ADDITIVE Inverse of 3;
\n" ); document.write( "(*) Multiplicative inverse of \"%281%2F4%29\".
\n" ); document.write( "I am being technical and not doing the steps for a reason. Can you do the steps?\r
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\n" ); document.write( "\n" ); document.write( "\"7x-x=7\".
\n" ); document.write( "This one is a little different, but just like the way explained and prompted above, how do you undo what was done to x?
\n" ); document.write( "(*) Distributive Property but in reverse, meaning factorize the left hand expression;
\n" ); document.write( "(*) Simplify one of those left hand expressions;
\n" ); document.write( "(*) You should now have a constant multiplied by x. What is the multiplicative inverse of this constant?
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