Simultaneous Equations

Question 1

What is the process to solve simultaneous equations

Answer 1

1. Use the simplest of the two given equations to express one of the variables in terms of the other.
2. Substitute into the second equation. By doing this we reduce the number of equations and the number of variables by one.
3. We now have one equation with one unknown variable which can be solved.
4. Use the solution to substitute back into the first equation to find the value of the other unknown variable.

Question 2

which method for solving Simultaneous equations is this

Answer 2

the Elimination method

Question 3

What is the process of solving simultaneous equations by equating them

Answer 3

1. Make one of the variables the subject of both equations.
2. Equate the two equations; by doing this we reduce the number of equations and the number of variables by one.
3. We now have one equation with one unknown variable which can be solved.
4. Use the solution to substitute back into either original equation, to find the corresponding value of the other unknown variable.

y = 0; stuff like that