Algebra

posted by .

When solving a system of equations by the addition method, how do you know when the system has no solution?

• Algebra -

when all the coefficent are the same sign and value.

Similar Questions

1. math 20 system of equations

I have been solving system of equations graphically and using addition and subtraction and now I'm being asked: Give any linear system of two equation that has a solution of (3,5). Does it have to be in y=mx+b form and if so how do …
2. Algebra

When solving a system of equations by the addition method, how do you know when the system has no solution?
3. Algebra

Explain why the addition method might be preferred over the substitution method for solving the system 2x-3y=5 5x+2y=6
4. ALGEBRA

Find the choice below which gives a first step in solving the given system of equations by the addition method 6x - 5y = 12 x + y = 3
5. algebra

Explain why the addition method might be preformed over the substitution method for solving the system 2x – 3y = 10 5x + 2y = 6 What is the solution of this system?
6. Algebra II

Explain, in complete sentences, which method you would use to solve the following system of equations and why you chose that method. Provide the solution to the system. x - 3y + 2z = -12 x + 2y + 3z = 6 2x - 3y - z = -2
7. Algebra

I can find no solution to this system of equations. Solve the system of equations using the substitution method 2x + 4y = -2 2x - y = 4