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25 + x = 28
x=


40 + x = 3
x=


21 + x = 46
x=


45 + x = 6
x=


39 + x = 28
x=


8 + x = 26
x=


40 + x = 47
x=


25 + x = 2
x=


13 + x = 10
x=


7 + x = 22
x=


4 - x = 31
x=


15 - x = 22
x=


43 - x = 4
x=


40 - x = 11
x=


42 - x = 29
x=


9 - x = 19
x=


3 - x = 11
x=


8 - x = 49
x=


31 - x = 14
x=


43 - x = 8
x=


x - 18 = 2
x=


x - 49 = 15
x=


x - 16 = 7
x=


x - 16 = 23
x=


x - 45 = 29
x=


x - 33 = 23
x=


x - 38 = 25
x=


x - 17 = 4
x=


x - 44 = 42
x=


x - 33 = 28
x=