document.write( "Question 786190: How do I find the angles of 5x+3 and 12x+7? They are supplementary angles. \n" ); document.write( "

Algebra.Com's Answer #478058 by juaneleanor(3) $\"\"$ $\"About$

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Since supplementary angles form 180 degrees\r
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\n" ); document.write( "\n" ); document.write( "Therefore the equation is…\r
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\n" ); document.write( "\n" ); document.write( "180=5x+3+12x+7\r
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\n" ); document.write( "\n" ); document.write( "180=17x+10\r
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\n" ); document.write( "\n" ); document.write( "Then transpose it …\r
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\n" ); document.write( "\n" ); document.write( "180-10=17x\r
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\n" ); document.write( "\n" ); document.write( "170/17=17x/17\r
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\n" ); document.write( "\n" ); document.write( "10=x\r
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\n" ); document.write( "\n" ); document.write( "Now that you got the value of x, substitute it…\r
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\n" ); document.write( "\n" ); document.write( "Angle 1 is 5(10)+3=53 degrees
\n" ); document.write( "Angle 2 is 12(10)+7=127 degrees\r
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\n" ); document.write( "\n" ); document.write( "Eleanor
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