1.2 Algebra - Simultaneous Equations

Question 1

what two methods can you use to solve simultaneous equations?

Answer 1

1. subsitution

2. elimination

Question 2

which method is the preferred method for solving simultaneous equations?

Answer 2

elimination

Question 3

in 4x+3y=10, what is the coeffiecent?

Answer 3

4

Question 4

in 4x+3y=10, what is the variable?

Answer 4

x

Question 5

what is the method for simultaneos equations?

Answer 5

1. multiply 1 whole equation to make x or y the same in both equations. sometimes it is necesary to multiply both equations.
2. subtract or add both equations together. DASS
3. rearrange to find your first variable
4. substitute and rearrange into any equation to find second variable.

Question 6

what is the simple way to remember what to do in simultaneous equations, after you have made the coefficients the same?

Answer 6

DASS = different add, same subtract