Question

Enter the number that belongs in the green box. 2x + 42 x 4x x = [ ? ]

Answer 1

Answer:

For the given equation, x = 21.

Step-by-step explanation:

Here, the lines represent the set of two intersecting lines.

And, the given angles (2x +42) and (4x) are VERTICALLY OPPOSITE ANGLES.

So,  (2 x +42) =  (4 x)

⇒  42  = 4 x  - 2 x  

or, 2 x  = 42

⇒  x = 42 /2  = 21

⇒ x = 21

Hence, for the given equation, x = 21.