A student solved the following problem. t + 7 = -8

t = -15

t = -9

Which of the following statements is true?

The solution is wrong, because the -15 should be 1.
The solution is correct.
The solution is wrong, because the -15 should be -1.
The solution is wrong, because the -9 should be -25.

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.