Question

If < A and < B form a linear pair, and < A = x - 13 degrees, and < B = x + 7 degrees, then find x. Select one: a. 124 b. 101 c. 46 d. 93

Answer 1

The correct value of "x" will be "93".

According to the question,

• A linear pair of sum to 180°,

then

→ $x-13+x+7=180$

→             $2x -6=180$

By adding "6" both sides of the equation, we get

→       $2x-6+6=180-6$

→                   $2x=186$

→                     $x = \frac{186}{2}$

→                     $x = 93$

Thus "option d" is the right answer.  

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