document.write( "Question 1017828: What is the complementary angle of (x+3)
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Algebra.Com's Answer #634041 by Theo(13342)\"\" \"About 
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two angles are complementary if their sum is 90 degrees.\r
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\n" ); document.write( "\n" ); document.write( "if their sum is 90 degrees, then one of the angles is equal to 90 - the other angle.\r
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\n" ); document.write( "\n" ); document.write( "for example:\r
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\n" ); document.write( "\n" ); document.write( "30 + 60 = 90, therefore 30 and 60 are complementary.\r
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\n" ); document.write( "\n" ); document.write( "30 = 90 - 60, therefore one of the angles (30) is equal to 90 - the other angle (60).\r
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\n" ); document.write( "\n" ); document.write( "likewise 60 = 90 - 30.\r
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\n" ); document.write( "\n" ); document.write( "in general:\r
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\n" ); document.write( "\n" ); document.write( "if a + b = 90, then b = 90 - a and a = 90 - b.\r
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\n" ); document.write( "\n" ); document.write( "your problem states to find the complementary angle of x + 3.\r
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\n" ); document.write( "\n" ); document.write( "let y be that angle.\r
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\n" ); document.write( "\n" ); document.write( "in order to be complmentary to x + 3, y would have to be equal to 90 - (x + 3)\r
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\n" ); document.write( "\n" ); document.write( "y = 90 - (x + 3) becomes y = 90 - x - 3 which becomes y = 87 - x.\r
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\n" ); document.write( "\n" ); document.write( "the complementary angle to x + 3 is equal to 87 - x.\r
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\n" ); document.write( "\n" ); document.write( "if these angles are complementary, then their sum is 90 degrees.\r
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\n" ); document.write( "\n" ); document.write( "x + 3 + 87 - x is equal to 90, therefore the angles are complementary.\r
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\n" ); document.write( "\n" ); document.write( "your solution is that the angle that is complementary to x + 3 is 87 - x.\r
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