Subtract 4 from b, then subtract a

The answer is (b-4)-a.

Step-by-step explanation:

When a expression is pronounced as "subtract FROM "

YOU MUST PUT THE SECOND NUMBER FIRST AND THE FIRST, SECOND.

subtract 5 form 4   =    4 - 5

In this case, 4 is subtracted from b or ( b-4 )

Then subtract a

( b - 4 ) - a

-9ab3a3b-52

Step-by-step explanation:

-8a3b+3a2b2-52+5a2b3a3b+7-9a2b2

-8a3b-6a-52+5a2b3a3b

-14a3b-52+5a2b3a3b

-9ab3a3b-52