2x + y = 6
6x + 3y = 18
Usually you can use elimination, substitution, graphing, matrices, etc. to find the answer to this system. If you use any of these methods (elimination and graphing in particular) you will see that these two equations are actually the same: multiply the first equation by three and you will see what I mean.
So picture it: graphing this system would essentially be drawing the same line twice. The two lines always overlap, so the equations share infinite solutions. Therefore the solution to the system is the whole line, or all the (x, y) points that satisfy 2x + y = 6.
72 but there is such a thing as a CALCULATOR
x = -3/5 and y = -24/5
U = 4 x 18 U = 72
18+18+18+19+23+23+24+24=167
69
Solve this system of equations. 5x+3y+z=-29 x-3y+2z=23 14x-2y+3z=-18 Write the solution as an ordered triple.
If: -2.5x+4.5y = 9 and -x+1.5 = 9 Then: x = -36 and y = -18
72 but there is such a thing as a CALCULATOR
x = -3/5 and y = -24/5
2+14=16
Solving the above simultaneous equations by means of the elimination method works out as x = 2 and y = 3
U = 4 x 18 U = 72
How do you add 2x plus 3y equals 18 in 5x-y equals 11
18+18+18+19+23+23+24+24=167
No.
21
69