Question

tìm x

(3x-1) : 13 = 14

5x + 2x= 98

7x - 4x = 2022

mình cần gấp giúp mình

Answer 1

\(\left(3x-1\right):13=14\)

\(\Rightarrow3x-1=182\)

\(\Rightarrow3x=183\)

\(\Rightarrow x=61\)

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\(5x+2x=98\)

\(\Rightarrow7x=98\)

\(\Rightarrow x=14\)

=======

\(7x-4x=2022\)

\(\Rightarrow3x=2022\)

\(\Rightarrow x=674\)

Answer 2

`(3x-1) : 13 = 14`

`=>3x-1=14xx13`

`=>3x-1=182`

`=> 3x=182+1`

`=> 33x=183`

`=>x=183:3`

`=>x=61`

Vậy `x=61`

`5x+2x=98`

`=> (5+2)x=98`

`=> 7x=98`

`=>x=98:7`

`=>x=14`

Vậy `x=14`

`7x-4x=2022`

`=> (7-4)x=2022`

`=> 3x=2022`

`=>x=2022:3`

`=>x=674`

Vậy `x=674`