document.write( "Question 121026: Solve equation for y
\n" ); document.write( "I=E/(R+r) for R \n" ); document.write( "

Algebra.Com's Answer #88771 by MathLover1(20850) $\"\"$ $\"About$

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given:\r
\n" ); document.write( "\n" ); document.write( " $\"I=E%2F%28R%2Br%29\"$ \r
\n" ); document.write( "\n" ); document.write( "to do:......solve for $\"R\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"I=E%2F%28R%2Br%29+\"$ ..........multiply both sides by $\"+%28R%2Br%29+\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"I%28R%2Br%29=%28R%2Br%29%28E%2F%28R%2Br%29%29+\"$ ..........simplify\r
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\n" ); document.write( "\n" ); document.write( " $\"I%28R%2Br%29=cross%28%28R%2Br%29%29%28E%2Fcross%28%28R%2Br%29%29%29+\"$ ..........\r
\n" ); document.write( "\n" ); document.write( " $\"IR%2B+Ir+=E\"$ .......move $\"Ir\"$ to the right\r
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\n" ); document.write( "\n" ); document.write( " $\"IR+=E+-+Ir\"$ ....divide both sides by $\"I\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"IR%2FI+=E%2FI+-+Ir%2FI\"$ ....simplify\r
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\n" ); document.write( "\n" ); document.write( " $\"cross%28I%29R%2Fcross%28I%29+=E%2FI+-+cross%28I%29r%2Fcross%28I%29\"$ ....\r
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\n" ); document.write( "\n" ); document.write( " $\"R+=E%2FI+-+r\"$ ....\r
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