Answer:
The question = (7^3)*(7^x)
When multiplying two exponents with the same base, all you do is add the exponents together and keep the same base
Therefore,
(7^3)*(7^x) = 7^(3+x)
Step-by-step explanation:
7^3+x is the answer
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Multiply both sides by three to get 2x=30
Then divide both sides by 2 to get x=15
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In order they are
1.1 * 10^12, 9.5 * 10^11 and 5*10^8