document.write( "Question 191738: In triangleABC, AC = 3x-14, BC= 7x-74, and measure of angle C= 90 degrees. Find the value of x that makes triangleABC a right isosceles triangle. \n" ); document.write( "
Algebra.Com's Answer #143959 by checkley75(3666)\"\" \"About 
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3X-14=7X-74
\n" ); document.write( "3X-7X=-74+14
\n" ); document.write( "-4X=-60
\n" ); document.write( "X=-60/-4
\n" ); document.write( "X=15 ANS.
\n" ); document.write( "PROOF
\n" ); document.write( "3*15-14=7*15-74
\n" ); document.write( "45-14=105-74
\n" ); document.write( "31=31
\n" ); document.write( "
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