document.write( "Question 1065378: ∠A and ∠B are supplementary angles. If m∠A=(5x+21)∘ and m∠B=(x−27)∘, then find the measure of ∠A. \n" ); document.write( "

Algebra.Com's Answer #680532 by Fombitz(32388) $\"\"$ $\"About$

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$\"A%2BB=180\"$
\n" ); document.write( " $\"5x%2B21%2Bx-27=180\"$
\n" ); document.write( " $\"6x=186\"$
\n" ); document.write( " $\"x=31\"$
\n" ); document.write( "So,
\n" ); document.write( " $\"A=5%2831%29%2B21\"$
\n" ); document.write( " $\"A=155%2B21\"$
\n" ); document.write( " $\"A=176\"$ \n" ); document.write( "

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