Question

Given mn, find the value of x.
(10x-21).
(10x+1)°

Answer 1

Step-by-step explanation: I think you put the variable to the left and bring all the remaining values to the right side, then simplify the values to find you final result

Answer 2

x = 10

The angles given,

(10x-21)° and (10x+1)° are interior angles inside the parallel lines m and n.

Interior angles inside parallel lines always sum ups to 180°

So now,

10x - 21 + 10x + 1 = 180

10x + 10x -21 + 1 = 180

20x - 20 = 180

20x = 200

x = 10