Question

6) mcPOF x + 42, mCPOR - 87°,and mzFOR r + 65. Find x.

Answer 1

Answer:  x =  -10 .
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Explanation:
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         x + 42 + x + 65  = 87 ;  Solve for "x" ; 

           2x + 107 = 87 .
 
Subtract "107" from each side of the equation:

           2x + 107 − 107 = 87 − 107 ;

             2x = -20 ;

Divide each side of the equation by "2" ; to isolate "x" on one side of the equation; and to solve for "x" ;
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             2x / 2  =  -20/2 ;

                 x = -10 .
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