Giải cho em vs ạ a, (x-35)-120=0 b, 124+(118-x) =217 c, 156-(x+61)=82 Cảm ơn m. n nha! 22/07/2021 Bởi Margaret Giải cho em vs ạ a, (x-35)-120=0 b, 124+(118-x) =217 c, 156-(x+61)=82 Cảm ơn m. n nha!
a, $(x-35)-120=0$ $x-35=0+120$$x-35=120$ $x=120+35$ $x=155$ Vậy $x=155$b, $124+(118-x)=217$ $118-x=217-124$ $118-x=93$ $x=118-93$ $x=25$ Vậy $x=25$c, $156-(x+61)=82$ $x+61=156-82$ $x+61=74$ $x=74-61$$x=13$ Vậy $x=13$ Bình luận
Đáp án: `(x-35)-120=0` `x-35=0+120` `x-35=120` `x=120+35` `x=155` `124+(118-x) =217` `118-x=217-124` `118-x=93` `x=118-93` `x=25` `156-(x+61)=82` `x+61=156-82` `x+61=74` `x=74-61` `x=13` Bình luận
a, $(x-35)-120=0$
$x-35=0+120$
$x-35=120$
$x=120+35$
$x=155$
Vậy $x=155$
b, $124+(118-x)=217$
$118-x=217-124$
$118-x=93$
$x=118-93$
$x=25$
Vậy $x=25$
c, $156-(x+61)=82$
$x+61=156-82$
$x+61=74$
$x=74-61$
$x=13$
Vậy $x=13$
Đáp án:
`(x-35)-120=0`
`x-35=0+120`
`x-35=120`
`x=120+35`
`x=155`
`124+(118-x) =217`
`118-x=217-124`
`118-x=93`
`x=118-93`
`x=25`
`156-(x+61)=82`
`x+61=156-82`
`x+61=74`
`x=74-61`
`x=13`