Can someone help me with this equation? The length of a rectangle is (2x+3) and the width is (x-6). Write the equation and solve to find the value of x if the perimeter of the rectangle is 90 centimeters.

2(2x+3) + 2(x-6) = 90

4x + 6 + 2x - 12 = 90
6x = 96
x = 16