Answer: Usually you have to find the value of X, for example if 9 - x = 5, then you have to subtract 5 from the nine and you get 4, and when you carry three over that means you have to regroup, for example
902 +
459
so 9+2=11, so you put 1 right there
902 +
459
.....1
and you carry the other 1 next to the 0, then it will become 10 + 5,
hope this helps, if you still don't get it tell me
Step-by-step explanation:
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