Question

Hi Can you help me with this please and also the blue is what I have to find
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Answer 1

The blue area is 2a

Explanation:

So, first, let's scope out the problem and split it up.

We have +10 on both sides, so we don't need to worry about that.

Now, 5a-3a+___=4a

So, if we do 5a-3a, we get 2a

So, 2a+___=4a

now, we can subtract 2a from b oth sides, and we are left with 2a

So, your answer is 2a!