document.write( "Question 479301: ∠a and ∠b are supplementary. If m∠a = 2x + 4 and m∠b = 4x - 10, what is the measure of ∠a? \n" ); document.write( "

Algebra.Com's Answer #328408 by Tatiana_Stebko(1539) $\"\"$ $\"About$

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if a and b are supplementary, then $\"a%2Bb=180\"$ degrees
\n" ); document.write( " $\"2x%2B4%2B4x-10=180\"$
\n" ); document.write( " $\"6x-6=180\"$
\n" ); document.write( " $\"6x=180%2B6\"$
\n" ); document.write( " $\"6x=186\"$
\n" ); document.write( " $\"x=186%2F6\"$
\n" ); document.write( " $\"x=31\"$
\n" ); document.write( "Angle $\"a=2%2A31%2B4=66\"$ degrees
\n" ); document.write( "Angle $\"b=4%2A31-10=114\"$ degrees \n" ); document.write( "

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