Question

tìm số nguyên x biết -214-[(117-x)-314]=0

Answer 1

`-214-[(117-x)-314]=0`

`=> -214-(117-x-314)=0`

`=> -214-117+x+314=0`

`=> x-17=0`

`=> x=0+17`

`=> x=17`

Answer 2

\(-214-[\left(117-x\right)-314]\text{=}0\)

\(-214-\left(117-x-314\right)\text{=}0\)

\(-214-117+x+314\text{=}0\)

\(x-17\text{=}0\)

\(x\text{=}17\)