Sebastian solved the radical equation y + 1 = -2y-3 but did not check his solution. which is the true solution to the radical equation y + 1 =-2y-3 ?

What is the value of x when x + 7 = 21?

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

The longer leg of a 30-60-90 trangle is 18