Sao ban chui ban ay?
3-(17-x)=289-(36+289)
3-(17-x)=-36
17-x=-36+3
17-x=39
x=17-39
x=-22
Nho cho mk nhe!!!!!!
3-(17-x)=289-(36+289)
3-(17-x)=-36
17-x=39
x=17-39
x=-22
Vay x=-22
Nho cho mk 1 h nha!!!
\(\text{3 - ( 17 - x ) = 289 - ( 36 + 289 )} \)
\(\text{=> 3 - 17 + x = 289 - 289 - 36}\)
\(\text{=> -14 + x = 0 - 36}\)
\(\text{=> x - 14 = -36}\)
\(\text{=> x = -36 + 14}\)
\(\text{=> x = -22}\)
\(\text{Vậy : x = -22}\)
3-(17-x)=289-(36+289)
3-(17-x)=-36
17-x=-36+3
17-x=39
x=17-39
x=-22