Answer:
the value of x is 13cm
Step-by-step explanation:
Hexagon has six(6) sides
Perimeter = Sum of all sides of the hexagon
144 = (x-5) + (2x) + (2x) + (2x+7) + (2x) + (2x-1)
144 = x - 5 + 2x + 2x + 2x + 7 + 2x + 2x - 1
Collect like terms
144 = 11x + 1
143 = 11x
143 / 11 = x
x = 13cm