document.write( "Question 919083: the base angles of an isosceles triangle are (5x + 2y) and (7x). If the vertex
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Algebra.Com's Answer #557461 by josgarithmetic(39620)\"\" \"About 
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\"5x%2B2y=7x\" because these base angle measures must be equal.
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\n" ); document.write( "\n" ); document.write( "Vertex angle of 36 means \"x%2Bx%2B36=180\", using also substitution
\n" ); document.write( "\"2x%2B36=180\"
\n" ); document.write( "\"x%2B18=90\"
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