`a) 126 - ( x + 32) = 80`
`( x + 32) = 126 - 80`
`x + 32 = 46`
`x = 46 - 32`
`x = 14`
Vậy `x = 14`
``
`c) ((x-5))/3 + 3 = 24`
`((x-5))/3 = 24 - 3`
`((x - 5))/3 = 21`
`(x - 5) : 3 = 21`
`( x - 5) = 21 . 3`
`x - 5 = 63`
`x = 63 + 5`
`x = 68`
``
`e) 23 + x/2 = 37`
`x/2 = 37 - 23`
`x/2 = 14`
`x = 14 . 2`
`x = 28`
``
`b) ( 127 - x) - 15 = 72`
`( 127 - x) = 72 + 15`
`127 - x = 87`
`x = 127 - 87`
`x = 40`
``
`d) (x-4)/3 - 2 = 100`
`(x-4)/3 = 100 + 2`
`(x - 4)/3 = 102`
`(x - 4) : 3 = 102`
`( x - 4) = 102 . 3`
`x - 4 = 306`
`x = 306 + 4`
`x = 310`
``
`f) ( x - 52) - 62 = 32`
`( x - 52) = 32 + 62`
`x - 52 = 94`
`x = 94 + 52`
`x = 146`
