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2 + 6 - 4 = 4
4
2048
64
3x+1+2x-2 = 64 3x+2x = 64-1+2 5x = 65 x = 13
The answer is 64.
57 + 7 = 64
162+64=226
64 + 27 = 91
x = 64 64 + 64 = 128
93
104
The answer is -56