Question

${x}^2 + 3x = 0 \\ x { }^ { 2} + y = 10$
Solve this

Answer 1

Step-by-step explanation:

Method 1 Using the Substitution Method

1)Move the variables to different sides of the equation. ...

2)Divide both sides of the equation to "solve for x." ...

3)Plug this back into the other equation. ...

4)Solve for the remaining variable. ...

5)Use the answer to solve for the other variable. ...

Know what to do when both variables cancel out.