Step by step
The question
Question: is (5, 2) a solution of x − 3y = 1.
x − 3y = 1
is (5, 2) a solution?
1 Read x and y
The first number is always x.
The second is y.
So x = 5 and y = 2.
(5, 2) → x = 5, y = 2
Careful!
Do not swap them.
The first number in (5, 2) is x.
Careful: not x = 2, y = 5 ✗
2 Put them in
Put x = 5 and y = 2 in.
5 − 3(2) =? 1
Work out each side.
5 − 6 =? 1
Is −1 equal to 1?
No.
That is false.
−1 ≠ 1 false ✗
It is false.
So (5, 2) is not a solution.
(5, 2) is not a solution
Let's look back.
First: read x and y.
Last: put them in.
Answer
(5, 2) is not a solution