Step by step
The question
Question: is (2, 3) a solution of x + 2y = 7.
x + 2y = 7
is (2, 3) a solution?
1 Read x and y
The first number is always x.
The second is y.
So x = 2 and y = 3.
(2, 3) → x = 2, y = 3
Careful!
Do not swap them.
The first number in (2, 3) is x.
Careful: not x = 3, y = 2 ✗
2 Put them in
Put x = 2 and y = 3 in.
2 + 2(3) =? 7
Work out each side.
2 + 6 =? 7
Is 8 equal to 7?
No.
That is false.
8 ≠ 7 false ✗
It is false.
So (2, 3) is not a solution.
(2, 3) is not a solution
Let's look back.
First: read x and y.
Last: put them in.
Answer
(2, 3) is not a solution