What year did the Spanish navy go to the bottom of the ocean? Why was this a turning point in history?
(ill give u brainliest answer if answered correctly)

1588; The defeat of 1588 led to a reform of fleet operations. The navy at this time was not a single operation but consisted of various fleets, made up mainly of armed merchantmen with escorts of royal ships. The Armada fiasco marked a turning point in naval warfare, where gunnery was now more important than ramming and boarding and so Spanish ships were equipped with purpose built naval guns

8 - (2a + 7) = a + 40     distribute/multiply - into (2a + 7)

8 - 2a - 7 = a + 40

1 - 2a = a + 40       add 2a on both sides

1 = 3a + 40         subtract 40 on both sides

-39 = 3a       divide 3 on both sides

-13 = a

[proof]

8 - (2a + 7) = a + 40

8 - (2(-13) + 7) = -13 + 40

8 - (-26 + 7) = 27

8 - (-19) = 27

8 + 19 = 27

27 = 27