Answer is the first one on left
5u - (-20u) - u - 18u + (-11u) = 10
5u + 20u - u - 18u - 11u = 10
-5u = 10
-5(-2) = 10
So, in conclusion, X, is equal to -2.
Answer:
x = 14
Step-by-step explanation:
Two lines given in the picture intersect each other at a point.
Given angles are the linear pair of angles.
Since, linear pair of the angles is supplementary,
(7x - 1)° + (6x - 1)° = 180°
(7x + 6x) + (- 1 - 1) = 180
13x -2 = 180
13x = 180 + 2
x = 
x = 14
Therefore, x = 14 will be the answer.