Evaluate each expression, using the values x = 13
and y = 7

X + y

X - y

Xy

2x + y

X + 2y

2x + 2y

4x - 3y

X + y - x- y

7x - 13y

How do you do 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.

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals