25x b - b = 14040:45 tìm x

2 câu trả lời

`25 × b - b = 14040 ÷ 45`

`25 × b - b × 1 = 14040 ÷ 45`

`25 × b - b × 1 = 312`

( 25 - 1 ) × b = 312

`24 × b = 312`

        `b = 312 ÷ 24`

        `b = 13`

$\text{#Dyn}$

`25×b-b=14040:45`

`=>(25-1)×b= 312`

`=>24×b=312`

`=>b=13`