Can someone please check this for mistakes please?

Question

y=4(x+3)-2x
y=4x+3-2x
y=2x+3
2x+3=y
2x=y-3
x=y/2-3

Hopefully I have rearranged the formula y=4(x+3)-2x to express x in terms of y.

Answer 1

The first step is wrong
4(x+3) does not equal 4x + 3.

Answer 2

Y-4(X+3)-2X
Y=4X+12-2X
Y=2X+12
2X=Y-12
X=Y/2-6