Answer:
[tex] \huge{ \fbox{ \sf{10}}}[/tex]
Step-by-step explanation:
Remember that The sum of the interior angles of a triangle is two right angles ( 90 + 90 ) or 180 . Create an equation:
[tex] \sf{ \: 8x + 60 + 40 = 180}[/tex]
In the question, we are asked to find the value of x.
Now , Add the numbers : 60 and 40
[tex] \longrightarrow \sf \: 8x + 100 = 180[/tex]
Move 100 to RHS ( Right Hand Side ) and change it's sign
[tex] \longrightarrow{ \sf{8x = 180 - 100}}[/tex]
Subtract 100 from 180
[tex] \longrightarrow{ \sf{8x = 80}}[/tex]
Divide both sides by 8
[tex] \longrightarrow{ \sf{ \frac{8x}{8} = \frac{80}{8} }}[/tex]
[tex] \longrightarrow{ \sf{x = 10}}[/tex]
The value of x is 10
Hope I helped!
Best regards! :D
~[tex] \sf{TheAnimeGirl}[/tex]
