Question

8.9×10⁷=[1×10³][8.9×10n]
What's the value of N?

Answer 1

Answer: n=1000

Explanation:

the original problem: 8.9×10⁷=[1×10³][8.9×10n]

then swap the side that 8.9×10⁷= is on so that is looks like this: [1×10³][8.9×10n]=8.9×10⁷

then multiply both sides by ten: [1×10³][8.9×10n]×10=8.9×10⁷×10

then simplify: 890000n=890000000

then divide both sides by 890000 and simplify: n=1000