document.write( "Question 33519: Quadrilateral- find the value of x. I have tried and tried to work this out and when I plug in my answer it doesnt figure. Please help I would appreciate it.
\n" ); document.write( "(x+30)+(x-55)+(x-45)+ x=360 Thank you so very much!! \n" ); document.write( "

Algebra.Com's Answer #19899 by Cintchr(481) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+%28x%2B30%29%2B%28x-55%29%2B%28x-45%29%2Bx=360++\"$
\n" ); document.write( "Combine like terms
\n" ); document.write( " $\"+x%2Bx%2Bx%2Bx%2B30-55-45=360++\"$
\n" ); document.write( " $\"+4x-70=360++\"$
\n" ); document.write( "Add 70 to both sides
\n" ); document.write( " $\"+4x+=+430+\"$
\n" ); document.write( " $\"+x+=+430%2F4+\"$
\n" ); document.write( "I reduced the improper fraction to make it easier to work.
\n" ); document.write( " $\"+x+=+215%2F2+\"$ \r
\n" ); document.write( "\n" ); document.write( "CHECK:
\n" ); document.write( " $\"+x%2Bx%2Bx%2Bx%2B30-55-45=360++\"$
\n" ); document.write( "Use this to plug back in
\n" ); document.write( " $\"+%28215%2F2%29%2B%28215%2F2%29%2B%28215%2F2%29%2B%28215%2F2%29%2B30-55-45=360++\"$
\n" ); document.write( "Add the fractions
\n" ); document.write( " $\"+%28860%2F2%29%2B30-55-45=360+\"$
\n" ); document.write( "Reduce the fraction
\n" ); document.write( " $\"+430%2B30-55-45=360+\"$
\n" ); document.write( "Add and subtract left to right
\n" ); document.write( " $\"+460-55-45=360+\"$
\n" ); document.write( " $\"+405-45=360+\"$
\n" ); document.write( " $\"+360=360+\"$
\n" ); document.write( "YES!!!\r
\n" ); document.write( "\n" ); document.write( " So X DOES = 215/2 or 107.5 degrees\r
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