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20 + x = 50
x=


14 + x = 44
x=


14 + x = 16
x=


6 + x = 7
x=


9 + x = 27
x=


29 + x = 45
x=


15 + x = 18
x=


4 + x = 10
x=


2 + x = 12
x=


27 + x = 43
x=


23 - x = 8
x=


6 - x = 6
x=


7 - x = 5
x=


29 - x = 16
x=


6 - x = 3
x=


11 - x = 2
x=


38 - x = 4
x=


20 - x = 2
x=


46 - x = 25
x=


41 - x = 18
x=


x - 30 = 42
x=


x - 0 = 3
x=


x - 6 = 25
x=


x - 18 = 25
x=


x - 7 = 20
x=


x - 15 = 17
x=


x - 16 = 34
x=


x - 29 = 36
x=


x - 1 = 3
x=


x - 3 = 17
x=