8x+7=55
8x=55-7
8x=48
x=48/8
x=6
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6x plus 3 equals 8x plus 14 when solved mathematically is equal to x = -5.5.
7.75 or 7 and 3/4
8x+7=55 8x=55-7 [subtract 7 from both sides] 8x=48 x=48/8 [divide both sides by 8] x=6
8x + 7 = 55 Subtract 7 from both sides: 8x = 48 Divide both sides by 8: x = 6
x = 0.125 ( BC - 7 )