(If the right side of the equation moves to the left, or the left side moves to the right, the sign will be reversed. Such as+change-)

Solution: Move the term and get it.

3.8x-3x=60- 12

0.8x=48

x÷ 0.8 = 48÷ 0.8

x=60

The penultimate step is the elimination method. According to the properties of the equation, the left and right sides of the equation are multiplied or divided at the same time, and the number remains unchanged. The answer is 60.

(If you are already familiar with this equation, the shift term in the first step can be omitted. )