Rewrite the expression ab dc ef such that each variable is replaced by a different non- zero digit and the value of expression is 1. (the answer may not be unique.)

ab dc ef is replaced by 12 43 56

Step-by-step explanation:

ab dc ef are replaced by the position they take when writing in an alphabetical order. a is 1, b is 2, c is 3, and so on.

So, ab dc ed is written as

12 43 56

and

56 - 43 - 12 = 1

y = - 6

step-by-step explanation:

given the point (- 2, y) lies on the graph then it is a solution of it's equation.

substitute x = - 2 into the equation for value of y

y = 3(- 2) = 3 × - 2 = - 6

the point on the graph is (- 2, 6)