Question

Please give me answer​

Answer 1

$2x + 70 = 180\begin{gathered}\qquad \longmapsto \frak{\underline{\purple{(linear \: pair) }} } \\\end{gathered} \\ 2x = 180 - 70 \\ 2x = 110 \\ x = \frac{110}{2} \\ x = 55\\\begin{gathered} \longmapsto \frak{\underline{\green{ Verification}} } \\\end{gathered} \\ 70 + 2x = 180 \\ 70 + 2(55) = 180 \\ 70 + 110 = 180 \\ 180 = 180 \\ LHS = RHS$

X=55°

More about linear pair:

linear pair of angles is formed when two lines intersect. Two angles are said to be linear if they are adjacent angles formed by two intersecting lines. The measure of a straight angle is 180 degrees, so a linear pair of angles must add up to 180 degrees.

$\: \: \: \: \: \: \: \: \: \: \huge \bold{@WildCat7083 }$