Answer:
all real numbers
Step-by-step explanation:
-(2x + 4) + x = 3x − 4x − 4
Distribute the negative sign on the left side. It is the same as having a -1 to the left of the parentheses.
-1(2x + 4) + x = 3x − 4x − 4
-2x - 4 + x = 3x - 4x - 4
Combine like terms on the left side. Combine like terms on the right side.
-x - 4 = -x - 4
Add 4 to both sides.
-x = -x
Add x to both sides.
0 = 0
You end up with a true equation. Therefore, there is an infinite number of solutions. Every real number is a solution.
Answer: all real numbers
