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30 + x = 41
x=


38 + x = 39
x=


38 + x = 23
x=


39 + x = 42
x=


45 + x = 27
x=


46 + x = 29
x=


47 + x = 31
x=


33 + x = 5
x=


22 + x = 23
x=


30 + x = 4
x=


15 - x = 34
x=


20 - x = 36
x=


13 - x = 49
x=


26 - x = 23
x=


9 - x = 46
x=


21 - x = 49
x=


26 - x = 9
x=


37 - x = 48
x=


47 - x = 29
x=


37 - x = 23
x=


x - 15 = 23
x=


x - 3 = 18
x=


x - 22 = 12
x=


x - 35 = 36
x=


x - 40 = 44
x=


x - 8 = 14
x=


x - 34 = 22
x=


x - 35 = 44
x=


x - 19 = 33
x=


x - 42 = 7
x=