Thinking of solving problems: The process of solving equations needs to merge similar terms, unknown terms and constant terms respectively, and finally convert the unknown terms into 1.

Problem solving process:

( 10-7.5)x=0. 125×8

x= 1/2.5

x=2/5

Extended data => Vertical calculation-calculation process: first align the last digit of two multipliers, then use the second multipliers respectively, multiply each digit by one multiplier in turn from the last digit, and finally accumulate the calculation results into a product. If the multiplier is decimal, the corresponding multiple can be expanded first, and then the product can be reduced by the corresponding multiple;

Problem solving process:

Step 1: 5×8=40

Step 2: 2×8= 160

Step 3: 1×8=800

The combined result according to the above calculation steps is 1.

If in doubt, please ask questions. If satisfied, please adopt them.