How to solve equation 0.2 times 8 plus 0.4x equals 18?

How to solve equation 0.2 times 8 plus 0.4x equals 18?

0.2×8+0.4x=18
1.6+0.4x=18
Both sides expand 10 times at the same time
16+4x=180
4x=164
x=41