Geometry angle of elevation and angle of depression, math homework help

The angle of elevation from A to B is represented by the expression (3x + 6). The angle of depression is represented by the expression (x + 20). Find the value of x.738.516 5.7 ===================The angle of elevation from A to B is represented by the expression (3x - 4). The angle of depression is represented by the expression 2(x + 7). Find the value of x.11183416=========================================================