What is wrong in the following additions?
(a)
(b)
NO
8
+2
4 4
=12
8
6 3

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

The trigonometric ratios sine and secant are reciprocals of each other

X+ y = 5 ; x - y =3 solve using linear combination