document.write( "Question 78291: -4(7x+10)=3(9x-5)+20 \n" ); document.write( "

Algebra.Com's Answer #56178 by rmromero(383) $\"\"$ $\"About$

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document.write( "-4(7x+10)=3(9x-5)+20\r
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document.write( "To simplify this:
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document.write( "1. undo the parenthesis first. Use Distributive property\r
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document.write( "             -4(7x+10)= 3(9x-5)+20
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document.write( "   -4 (7x) + (-4)(10) = 3(9x) - 3 (5) + 20
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document.write( "            -28x - 40 = 27x - 15 + 20
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document.write( "      -28x - 27x - 40 = 27x - 27x + 5
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document.write( "       -55x - 40 + 40 = 5 + 40
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document.write( "                 -55x = 45\r
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document.write( "If we are to find x just divide -55 both sides
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document.write( "                        45
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document.write( "                   x = ____
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document.write( "                       -55\r
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document.write( "                          9
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document.write( "                     =  _____
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document.write( "                         -11
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document.write( "  \n" );
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