document.write( "Question 469220: 1 and 2 are supplementary. If m 1 = 60° and m 2 = (2x + 20). What is the value of x? i dont understand what they are asking? \n" ); document.write( "

Algebra.Com's Answer #321928 by Earlsdon(6294) $\"\"$ $\"About$

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You are being asked to solve for x using the given information:
\n" ); document.write( "Angles 1 and 2 are supplementary which means that their sum is 180 degrees.
\n" ); document.write( "So if you add angle 1 (60 deg.) and angle 2 (2x+20)deg. and set the sum equal to 180 degrees, you'll have an equation that will allow you to solve for x.
\n" ); document.write( " $\"60%2B%282x%2B20%29+=+180\"$ Simplify.
\n" ); document.write( " $\"2x%2B80+=+180\"$ Subtract 80 from both sides.
\n" ); document.write( " $\"2x+=+100\"$ Divide both sides by 2.
\n" ); document.write( " $\"highlight%28x+=+50%29\"$ \n" ); document.write( "

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