Срочно!!!
Решением какой из данных систем уравнений является пара чисел (2;-1)?
1) {4x-2y=6
2) {2x+3y=1
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1) {4x+2y=6
2) {2x+3y=-1
-
1) {2x-2y=0
2) {2x-3y=5
-
1) {x-y=3
2) {x-3y=5

Помогите выполнить задание

Here are John's answers. What are the questions?

1. What School do you study in?

I study in secondary school.

2. ...?

 I wear blue uniform at school.

3. ...?

We have six terms in a school year.

4. ...?

 I have five lessons a day.