Shifting one term from one side of an equation to another side with a change of sign is known as

If = 3, then the value of 3x + 2 is

Which of the following numbers satisfy the equation –6 + x = –12?

Fill in the blanks to make the statements true.

The sum of two numbers is 60 and their difference is 30.

(a) If smaller number is x, the other number is ________. (use sum)

(b) The difference of numbers in term of x is ________.

(c) The equation formed is ________.

(d) The solution of the equation is ______.

(e) The numbers are and ________.

Fill in the blanks to make the statements true.

Sum of two numbers is 81. One is twice the other.

(a) If smaller number is x, the other number is ________.

(b) The equation formed is ________.

(c) The solution of the equation is ________.

(d) The numbers are and ________.