If the perimeter of the triangle is 49, find the value of x

Hello!
Let's write this as the equation below.
4x-1+4x+2+3x+4=49
Let's simplify this by combining like terms.
11x-1+2+4
11x+5=49
We subtract 5 from both sides.
11x=44
We divide both sides by 11.
x=4
I hope this helps!