1. 4+x= -3, x=..... 2. 9-y= -2, y=..... 3. 2x= 14, x=..... 4. x-3=9, x=..... 5. 3y+5=y-7, y=..... 6. 2,5y -3,2=12,5, y=...... Tolong bantu jawabin kakak yg bai

1. x = -7
2. y = 11
3. x = 7
4. x = 12
5. y = -6
6. y = 6,28

1).
4 + x = -3
x = -3 - 4
x = -7

2).
9 - y = -2
-y = -11
y = 11

3).
2x = 14
x = 14/2
x = 7

4).
x - 3 = 9
x = 9 + 3
x = 12

5).
3y + 5 = y - 7
2y + 5 = -7
2y = -12
y = -6

6).
2,5y - 3,2 = 12,5
2,5y = 12,5 + 3,2
2,5y = 15,7
y = 6,28