Question

71+5(x -29)=4×7²

Answer 1

\(71+5\left(x-29\right)=4.7^2\)

\(71+5\left(x-29\right)=196\)

\(5\left(x-29\right)=196-71\)

\(5\left(x-29\right)=125\)

\(x-29=125\div5\)

\(x-29=25\)

\(x=25+29\)

\(x=54\)

 

Answer 2

\(71+5\left(x-29\right)=4.7^2\)
\(71+5\left(x-29\right)=196\)
\(5\left(x-29\right)=125\)
\(x-29=25\)
Vậy \(x=54\)

Answer 3

`71+5(x -29)=4×7^2`

`=> 71+5(x -29)=4×49`

`=> 71+5(x -29)=196`

`=> 5(x -29)=196-71`

`=> 5(x -29)=125`

`=>x-29=125:5`

`=>x-29=25`

`=>x=25+29`

`=>x=54`

Answer 4

71 + 5(x - 29) = 4 . 7²

71 + 5(x - 29) = 4 . 49

71 + 5(x - 29) = 196

5(x - 29) = 196 - 71

5(x - 29) = 125

x - 29 = 125 : 5

x - 29 = 25

x = 25 + 29

x = 54