The problem ask on which of the following would complete the equation so that it has one solution and the answer among the question is letter A. 4X-12. I hope you are satisfied with my answer and feel free to ask for more if you have clarification and questions
It is not ok.................
15 (20)+6(60-20)= 240
15 (30)+6(60-30)=630
15(40)+6(60-40)=720
you can conclude that none of the numbers have anything in common except that they all end in a 0
Two x plus five equals ten
