Question

B decreased by 31.​

Answer 1

Question ⤵️

B decreased by 31.

Answer ⤵️

"decreased by" means made less by.

10

decreased by 4 means

10 − 4 = 6

a and b also just represent numbers.

We do exactly the same..

b − a

However, as these are variables and unlike terms, this is all we can do until we know actual numbers to use.

Hope it helps you ✌️

Step-by-step explanation:

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