y=16 x= -4
By elimination: x = 3 and y = 0
2x + 2y = 44x + y = 1There are many methods you can use to solve this system of equations (graphing, elimination, substitution, matrices)...but no matter what method you use, you should get x = -1/3 and y = 7/3.
4y+2 = 2y+6 4y-2y = 6-2 2y = 4 y = 2
many solutions
y=16 x= -4
By elimination: x = 3 and y = 0
The elimination method only works with simultaneous equations, hence another equation is needed here for it to be solvable.
2x + 2y = 44x + y = 1There are many methods you can use to solve this system of equations (graphing, elimination, substitution, matrices)...but no matter what method you use, you should get x = -1/3 and y = 7/3.
2y = 4x + 4y = 2x + 2
you can not solve this equation
4y+2 = 2y+6 4y-2y = 6-2 2y = 4 y = 2
many solutions
2y + 4 = 3ySubtract 2y from both sides:4 = ywhew
3x + 2y = 12 ie 2y = 12 - 3x so y = 6 - 3x/2
Solving by the elimination method: x = 7 and y = 2
3x+2y=6 2y=-3x+6 y=-1.5x+3