Answer:
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Step-by-step explanation:
Step-by-step explanation:
distance between (12.-7) and (-3, -7)

=12+3
=15 units
To solve for C, you have to get both of the numbers with a C on the same side. So, subtract the 5c from the right side onto the left side.

Then, divide by 3 on each side.

So, c = 7.