document.write( "Question 72928: 0=5(k+9) \n" ); document.write( "

Algebra.Com's Answer #52151 by bucky(2189) $\"\"$ $\"About$

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Given:
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\n" ); document.write( "0=5(k+9)
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\n" ); document.write( "First do the distributive multiplication on the right side to get:
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\n" ); document.write( "0 = 5*k + 5*9 = 5x + 45
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\n" ); document.write( "Then subtract 45 to eliminate the 45 on the right side. The result of this subtraction
\n" ); document.write( "is:
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\n" ); document.write( "-45 = 5k
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\n" ); document.write( "Finally transpose sides and then divide both sides by 5 to solve for k. The answer is:
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\n" ); document.write( " $\"5k%2F5+=+-45%2F5\"$
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\n" ); document.write( "which reduces to:
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\n" ); document.write( " $\"k+=+-9\"$
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\n" ); document.write( "You might have been able to spot the solution earlier too. For the given equation to
\n" ); document.write( "be true, 5 has to be multiplied by zero to equal zero. Therefore you can say that
\n" ); document.write( "the quantity (k + 9) has to equal zero and this means that k has to equal -9.
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\n" ); document.write( "Hope this helps you to understand the method of solving algebraic equations such as this one. \n" ); document.write( "

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