Answer:
0=0
Step-by-step explanation:
3x- 15=3 (x- 5)
We simplify the equation to the form, which is simple to understand
3x-15=3(x-5)
Reorder the terms in parentheses
3x-15=+(+3x-15)
Remove unnecessary parentheses
+3x-15=+3x-15
We move all terms containing x to the left and all other terms to the right.
+3x-3x=-15+15
We simplify left and right side of the equation.
0x=0
0=0
This equation is an identity, so all real numbers are solutions.
