Question

4x - 12 = 2(2x - 6) (one solution,no solution,infinite many)
-4x - 12 = -4x + 10 (one solution,no solution,infinite many)
-4x + 12 = 12 (one solution,infinite many,no solution)

Answer 1

@hilltaiyanna
Hint:
expand both sides of the equation and simplify as much as possible.
If after simplification you come up with
10=10 or 0=0 (with no terms in x)
that means there is an infinite number of solutions.
If after simplification you come up with contradictory statements,
50=30, or 4=0
Then there is no solution.

Answer 2

okay i think the first one no solution what are the others