Hey there!
6w = 18 - 3w
18 - 3w = 6w
-3w + 18 = 6w
SUBTRACT 6w to BOTH SIDES
-3w + 18 - 6w = 6w - 6w
SIMPLIFY IT!
-9w + 18 = 0
SUBTRACT 18 to BOTH SIDES
-9w + 18 - 18 = 0 - 18
CANCEL out: 18 - 18 because it gives you 1
KEEP: 0 - 18 because it help solve for the w-value
NEW EQUATION: -9w = 0 - 18
SIMPLIFY IT!
-9w = -18
DIVIDE -9 to BOTH SIDES
-9w/-9 = -18/-9
CANCEL out: -9/-9 because it gives you 1
KEEP: -18/-9 because it give you the x-value
NEW EQUATION: x = -18/-9
SIMPLIFY IT!
x = 2
Therefore, your answer is: x = 2
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)