Given the following system of equations, type the target variable matrix for x.

5x − y = 6
2x + 7y = 9

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

Find the solutions for a triangle with a =16, c =12, and b = 63º

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