Show the work you did when getting your answer ! you.

4x + 18 = 10x
Subtract 4x from both sides
18 = 6x
Divide by the coefficient to get X by itself.
3 = x
Each of the square's sides = 3.

Since you know the sides are equal you can make an equation setting them equal to each other:

4x+18=10x

Now we solve. We want all the ones with x values on one side so we move the 4x to the right side by subtracting 4x from both sides.

18-4x+4x=10x-4x
18=6x

Now, we can divide both sides by 6 to get the value of x
18/6=6x/6
3=x

I hope that helps.

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle