Question

3(x+10)-5=15

Answer 1

3.(x+10)-5=15

<=>3.(x+10)=15+5

<=>3.(x+10)=20

<=>x+10=20:3

<=>x+10=\(\dfrac{20}{3}\)

<=>x=\(\dfrac{20}{3}-10\)

<=>x=\(-\dfrac{10}{3}\)

Answer 2

`3(x+10)-5=15`

`=> 3(x+10)=15+5`

`=> 3(x+10)=20`

`=> x+10=20:3`

`=> x+10=20/3`

`=> x=20/3-10`

`=> x=-10/3`

Vậy `x=-10/3`