Answer:
7
Step-by-step explanation:
You end up with a false statement.
4 has never equaled 3.
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We are given:

Our goal in solving for any variable, in this case is x, we need to isolate x on one side of the variable. Let's start by subtracting 7x from both sides, which will cancel the +7x on the right side. We are then left with:

Now, we want to move that +10 to the other side so our x is all by itself. Let's subtract 10 from both sides, which will cancel the +10 on the right leaving us with:

Since we cannot have a coefficient when solving for x, we need to divide both sides by -3.

When we divide, our answer is:

Sixty eight thousand seven hundred and eight in word form
60000+8000+700+8 in expanded form