I am not sure what the question is, but heres my 2 cents.
You know what? Never mind. I don't get the question at all. In order to use substitution, you must totally isolate a variable to 1 side, and only have the variable on 1 side. Then you substitute it. Ex:
2y+4x-5z=45
2z+x-4y=54
Isolate x in the 2nd equation, as it is easier:
x=54-2z+4y
Now, substitute it:
2y+4(54-2z+4y)-5z=45
Got it? I might have done something wrong.
To solve a system of equations, you need equations (number phrases with equal signs).
The answer depends on whether they are linear, non-linear, differential or other types of equations.
Its harder to solve the equations with grande numbers
Multiply every term in both equations by any number that is not 0 or 1, and has not been posted in our discussion already. Then solve the new system you have created using elimination or substitution method:6x + 9y = -310x - 6y = 58
No. The word "order" has various meanings in math, but I don't think this is one of them.
You can solve the system of equations with three variables using the substitute method, or using matrix operations.
To solve a system of equations, you need equations (number phrases with equal signs).
The answer depends on whether they are linear, non-linear, differential or other types of equations.
A system of equations is two or more equations that share at least one variable. Once you have determined your equations, solve for one of the variables and substitute in that solution to the other equation.
isolate
y=7x-8 42x-48=6y
Its harder to solve the equations with grande numbers
When talking about a "system of equations", you would normally expect to have two or more equations. It is quite common to have as many equations as you have variables, so in this case you should have two equations.
Multiply every term in both equations by any number that is not 0 or 1, and has not been posted in our discussion already. Then solve the new system you have created using elimination or substitution method:6x + 9y = -310x - 6y = 58
the answer
You use algebra and solve the system(s) of equations using techniques such as elimination or substitution.
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