Question

What is the solution set of the following equation?

-8x + x + 15 = -7x + 12
Ø
{1/7}
{all reals}

Answer 1

combine like terms on each side of the equation, you get
- 7x + 15 = - 7x + 12
Add 7x to both sides, you get 15 = 12 which is not a true statement, therefore, there is NO solution to the equation, or the empty set { } ...second choice.

Answer 2

first choice, sorry

Answer 3

-8x + x + 15 = -7x + 12
-7x+15=-7x+12
15=12(False) s.s= empty set