`17 + 2x = 43`
`2x=43-17=26`
`x=26/2=13`
`6x - 8 = 10`
`6x=10+8=18`
`x=18/6=3`
`, 27 - 27 : x = 18`
`27:x=27-18=9`
`x=27/9=3`
` ( 6 + 27x ) : 3 + 11 = 31`
`2+9x +11 =31`
`9x = 31-11-2 = 18`
`x=18/9=2`
`( 35 - 4x ) . 3^5 = 3^6`
`35 -4x = 3`
`4x =35-3 = 32`
`x=32/4=8`
`32 : ( 3x - 2 )=2^3`
`3x-2 = 32 :2^3 = 4`
`3x=4+2=6`
`x=6/3=2`