The reason is that there is a water shortage happening there. They needed to conserve water and be supplied from sources. Right now there are strict measures in the use of water in that area to ensure that it does not go to waste.
I think A hope this helps
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Assuming you're still referring to the Fifteenth Amendment, many critics pointed out that the newly-freed slaves lacked the proper amount of education to make informed voting decisions, and that it would be detrimental to the state to have them vote in general and local elections.

a - 7 < <span>

a - 9 Give the fractions a common denominator. (2 and 3 both go into 6)
</span>

a - 7 <

a - 9 Subtract <span>

a from both sides
-7 < </span><span>

a - 9 Add 9 to both sides
</span>2 < <span>

a Multiply both sides by 6 to cancel out the fraction
12 < a Flip the inequality to make it easier to read
a > 12</span>