By what method are you using. If not your calculator on matricies, then Irecommend the method of determinants.
Use simultaneous equation method:
Now, the equation 2 become:
Now equation 1 becomes
x=-y-3-1=-y-4; i.e, x=-y-4....(a)
equation 3 becomes:
Now the very first equation becomes
Algebra II - If you were to use the substitution method to solve the following ...
algebra 2 - 1) 2a+c=-10 b-c=15 a-2b+c=-5 2) x+y+z=3 13x+2x=2 -x-5z=-5 3)x-y+3z=3...
math help - 5x+10y +15z-15x+10y-5z+5x-10y-5z / (5x+10y+15z)-(15x+10y-5z)+(5x-10y...
Math Help!! - Solve 2x-y-5z=1 x+2y+3z=9 3x+6y+z=11 2x-3y=-13 -5x+2y=16
Algebra - Use the elimination method to solve the following system of equations...
Discrete Math - I am really stuck on these problems. I've worked a lot of them ...
pre-calc - solve each system of equations using matrices x+2y-3z=0 2x-4y=z=-7 -...
Algebra - 4x+2y-3z=7 2x+4y+z=35 6x+2y-2z=20 solve the system
Algebra Multiple Choice - Hello, This is the last of questions I have for my ...
Algebra 2 - Solve the system by elimination: -2x + 2y + 3z = 0 -2x - y + z =-3 ...