What are the correct answers to this geometry problem?

What is the equation and solution for the sentence? the sum of a number and thirty-one is one hundred thirteen. write the equation as n-31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and add 31 to both sides. the answer is 144. write the equation as n-31=113 and add 31 to both sides. the answer is 144.

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28