Question

1)x+14=9 2)x-16=8 3)27+у=7 4)57+х=10 5)у-30=20 6)х+69=30 7)30+х=30

Answer 1

1.x+14=9
  x=-5

2.x-16=8
   x=24

3.27+y=7
   y=-20

4.57+x=10
  x=-47

5.y-30=20
   y=50

6.x+69=30
   x=-39

7.30+x=30
  x=0 

Answer 2

To solve these equations for the variables x and y, let's go through them one by one:

1. x + 14 = 9 Subtract 14 from both sides: x = 9 - 14 x = -5

2. x - 16 = 8 Add 16 to both sides: x = 8 + 16 x = 24

3. 27 + y = 7 Subtract 27 from both sides: y = 7 - 27 y = -20

4. 57 + x = 10 Subtract 57 from both sides: x = 10 - 57 x = -47

5. y - 30 = 20 Add 30 to both sides: y = 20 + 30 y = 50

6. x + 69 = 30 Subtract 69 from both sides: x = 30 - 69 x = -39

7. 30 + x = 30 Subtract 30 from both sides: x = 30 - 30 x = 0

So, the solutions are:

1. x = -5
2. x = 24
3. y = -20
4. x = -47
5. y = 50
6. x = -39
7. x = 0