Question 578699
2(x-3) = x - 3
multiply what is inside the brackets
2x - 6 = x - 3
subtract x from both sides; add 6 to both sides
2x - x - 6 + 6 = x - x -3 + 6
x = +3
:
Check this in the original problem, replace x with -3
2(3-3) = 3 - 3
0 = 0; confirms our solution of x=3