Solve this system of equations. 5x+3y+z=-29 x-3y+2z=23 14x-2y+3z=-18 Write the solution as an ordered triple.
x = -1.2, y = -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
3x + 2y = 62x + 3y = -1You can use substition, elimation, or graphing to solve this system, but I prefer to use matrices. They are difficult to type out, but the answer is x = 4 and y = -3.
3x+2y=6 2y=-3x+6 y=-1.5x+3
Subtract by 7x and divide by 2.
By elimination: x = 3 and y = 0