Example 3 Solve for X ! ❗️

3x+31=4x-13
or, 31+13=4x-3x
or, 44 = x
The answer is 44.
Hope it helps.
ray4918 here
Answer:
[tex](3x + 31) = (4x - 13) \\ \\ 3x + 31 = 4x - 13 \\ \\ 4x - 3x = 31 - 13 \\ \\ x = 18[/tex]
Vertical angel was equal each other