Figure ABCD is a rectangle. Find the value of x. 9x - 6 3x + 12 x= [?]

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?

How to write four times a number,minus 6,is equal to theee times the number+8 as an equqtion

Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle