document.write( "Question 110392: line wy and vz interserct at point x. measure of angle wxv = 4s -9 and measure of angle zxy = 2s +17 prove s=13 \n" ); document.write( "

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From the information given angles WXV and ZXY are opposite angles at the point of intersection X.
\n" ); document.write( "Hence these two angles are equal.
\n" ); document.write( "So 4s - 9 = 2s + 17
\n" ); document.write( "Add 9 to both sides:
\n" ); document.write( "4s = 2s + 26
\n" ); document.write( "Subtract 2s from both sides:
\n" ); document.write( "2s = 26
\n" ); document.write( "Divide both sides by 2:
\n" ); document.write( "s = 13 QED \n" ); document.write( "

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