Can someone help me out with these?

2x + 7 + 3x + 5 =5x+12

3x + 9 + 4x + 3 =7x+12

5x – x =4x

5y + 7y = 12y

7 + 6y + 5 =6y+12

2 + 6x + 4 + x = 6+7x

4 + 5y + 6 + 2y =10+7y

3x + 9 + 4x – 5 =4+7x

8 + y ‒ 5 + 2y =13+1y

6y + 4 + 8y + 9 =14y+13 11. 2 + x ‒ 1 + 4x =1+5x

8y + 4y =12+