document.write( "Question 977524: The sum of the measures of the angles of any quadrilateral is 360°. The measures of ∠A and ∠B are the same. The measure of ∠C is 17° greater than the measure of ∠A, and the measure of ∠D is 37° less than ∠B. Find the measure of ∠A, ∠B, ∠C, and ∠D. \n" ); document.write( "
Algebra.Com's Answer #599061 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
\"system%28A=B%2CC=17%2BA%2CD=-37%2BB%2CA%2BB%2BC%2BD=180%29\"\r
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\n" ); document.write( "\n" ); document.write( "That is the system. Do you need more help?
\n" ); document.write( "-Yes!-\r
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\n" ); document.write( "\n" ); document.write( "Try to use the first equation to eliminate A.
\n" ); document.write( "\"system%28C=B%2B17%2CD=B-37%2CB%2BB%2BC%2BD=360%29\"
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\n" ); document.write( "\"system%28C=B%2B17%2CD=B-37%2C2B%2BC%2BD=360%29\",
\n" ); document.write( "and notice how two of these equations are in terms of just B...
\n" ); document.write( "substitute for them in the \"360\" equation:
\n" ); document.write( "\"highlight_green%282B%2B%28B%2B17%29%2B%28B-37%29=360%29\"
\n" ); document.write( "Work with this to solve for the value of B.
\n" ); document.write( "Do what you know you need to finish.
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