Using substitution
x+3y=3
3y-2x=12

Step-by-step explanation:

Given :-

x + 3y = 3 3y - 2x = 12

And we need to solve the equation using Substituting method . So on taking the first equation ,

Put this value in (ii) :-

Put this Value in (I) :-

Hence the Value of x is 21 and y is (-6) .

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .

52 or what they said ☝️