IDNLearn.com: Where your questions meet expert answers and community support. Ask anything and receive prompt, well-informed answers from our community of knowledgeable experts.

a cell phone company charges one $20 for the phone and then $35 a month for phone service another cell phone company charges 55 a month for phone service with a free phone after how many months will the phone services cost the same ​

Sagot :

After 1 month

20 + 35x = 0 + 55x