Question

Use substitution to solve the linear system of equations.



infinitely many solutions
(-15, -6)
(-3,10)
no solution

Answer 1

I don’t see the system of equations — could you paste the two equations here?

If you want the general method for using substitution, here it is in brief:

1. Solve one equation for one variable (e.g., x = ... or y = ...).
2. Substitute that expression into the other equation and solve for the remaining variable.
3. Substitute that value back to get the other variable.
4. Interpret the result:
- A single ordered pair (x, y) is the unique solution (one of your choices like (-15, -6) or (-3, 10)).
- A true identity (e.g., 0 = 0) after substitution means infinitely many solutions (the same line).
- A contradiction (e.g., 5 = 0) means no solution (parallel lines).

Share the two equations and I’ll do the substitution and pick which of your listed answers is correct.