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Anonymous
x + 8x = 477
9x = 477
x = 53
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8x+39 = 2x-15 6x = -54 x = -9
x=1, y=1
-8x + 3 = 251 -8x = 251 - 3 -8x = 248 -x = 248 ÷ 8 -x = 31 x = -31
8x plus 4y equals 5 is 8x + 4y = 5.
(4 ± i2) where i2 = -1