Toán x+x+x *3=1285 giúp mik vs mik đang cần gấp 08/10/2021 By Ximena x+x+x *3=1285 giúp mik vs mik đang cần gấp
`x + x + x × 3 = 1285` `x × 1 + x × 1 + x × 3 = 1285` `x × (1 + 1 + 3) = 1285` `x × 5 = 1285` `x = 1285 : 5` `x = 257.` Trả lời
Đáp án: $\text{x+x+x * 3 = 1285}$ $\text{ x+x +3x = 1285 }$ $\text{ 5x = 1285 }$ $\text{ x = 1285 : 5 }$ $\text{ x = 257 }$ $\text{ Vậy x =257 }$ Trả lời
`x + x + x × 3 = 1285`
`x × 1 + x × 1 + x × 3 = 1285`
`x × (1 + 1 + 3) = 1285`
`x × 5 = 1285`
`x = 1285 : 5`
`x = 257.`
Đáp án:
$\text{x+x+x * 3 = 1285}$
$\text{ x+x +3x = 1285 }$
$\text{ 5x = 1285 }$
$\text{ x = 1285 : 5 }$
$\text{ x = 257 }$
$\text{ Vậy x =257 }$