document.write( "Question 825717: I have a right triangle ABC. I know angle A is 90 degrees. Angle B is \"3x\" and angle C is \"(y+7)\". I have to solve for both variables. Also, AB and AC are congruent. \n" ); document.write( "
Algebra.Com's Answer #497543 by jim_thompson5910(35256)\"\" \"About 
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You have two congruent legs which means that you have an isosceles right triangle. Therefore, you basically have a 45-45-90 triangle (the base angles are equal to 45)\r
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\n" ); document.write( "\n" ); document.write( "angle B = 45 degrees\r
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\n" ); document.write( "\n" ); document.write( "3x = 45\r
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\n" ); document.write( "\n" ); document.write( "x = 45/3\r
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\n" ); document.write( "\n" ); document.write( "x = 15\r
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\n" ); document.write( "\n" ); document.write( "and\r
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\n" ); document.write( "\n" ); document.write( "angle C = 45 degrees\r
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\n" ); document.write( "\n" ); document.write( "y+7 = 45\r
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\n" ); document.write( "\n" ); document.write( "y = 45-7\r
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\n" ); document.write( "\n" ); document.write( "y = 38 \n" ); document.write( "
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