Question

x +567 + x -67 = x +90

Answer 1

\(x+567+x-67=x+90\\ \Rightarrow\left(x+x\right)+\left(567-67\right)=x+90\\ \Rightarrow2x+500-x-90=0\\ \Rightarrow x+410=0\\ \Rightarrow x=-410\)

Answer 2

`x+567 +x-67=x+90`

`=>(x+x)+(567-67)=x+90`

`=>2x+500=x+90`

`=>2x-x=90-500`

`=>x= - 410`

Vậy `x=-410`

Answer 3

x+567+x-67=x+90

x+(567-67)=x+90

2x+500-x-90=0

x+410=0

x=-410