The temperature in minneapolis changed from -7 to 7. how much did the temperature increase

What does x = in this equation x+3+2x=x+5

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit