`a)` `x - 6 = 65 : 63`
`x - 6 = 1,037`
`x = 1,037 + 6`
`x = 7,037`
`b)` `46x - 25 = 92`
`46x - 92 + 25`
`46x = 117`
`x = 117 : 46`
`x = 2.543`
`c)` `42x + 43 = 75`
`42x = 75 - 43`
`42x = 32`
`x = 32 : 42`
`x = 32/42`
`d)` `4(x - 3) = 72 - 110`
`4(x - 3) = -38`
`x - 3 = -38 + 4`
`x - 3 = -34`
`x = -34 + 3`
`x = -31`
`e)` `128 - 3(x - 4) = 23`
`3(x - 4) = 128 - 23`
`3(x - 4) = 105`
`x - 4 = 105 : 3`
`x - 4 = 35`
`x = 39`