64-x==4,x+8=28,x-9=17

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To solve these equations, we will isolate x in each equation:

1) 64 - x = 4
Subtract 64 from both sides:
-x = 4 - 64
-x = -60
Divide by -1 to solve for x:
x = 60

2) x + 8 = 28
Subtract 8 from both sides:
x = 28 - 8
x = 20

3) x - 9 = 17
Add 9 to both sides:
x = 17 + 9
x = 26

Therefore, the solutions for the equations are:
1) x = 60
2) x = 20
3) x = 26