document.write( "Question 1068153: suppose angle a is a complement of angle b. Find the value of x, angle a and angle b is angle a= 7x + 9 and angle b= 4x + 9 \n" ); document.write( "

Algebra.Com's Answer #683318 by Fombitz(32388) $\"\"$ $\"About$

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$\"a%2Bb=90\"$
\n" ); document.write( " $\"7x%2B9%2B4x%2B9=90\"$
\n" ); document.write( " $\"11x=72\"$
\n" ); document.write( " $\"x=72%2F11\"$ \n" ); document.write( "

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