Question

tìm x

\((x+184-278)-(184-278)=4\)

Answer 1

\(\left(x+184-278\right)-\left(184-278\right)=4\\\left(x+184-278\right)-\left(-94\right)=4\\ \left(x+184-278\right)+94= 4\\ \left(x+184-278\right)= 4-94\\ \left(x+184-278\right)=-90\\ x+184=-90+278\\ x+184=188\\ x=188-184\\ 4.\)

Answer 2

( x + 184 - 278 ) - ( 184 - 278 ) = 4

x + 184 - 278 - 184 + 278 = 4

x + 0 = 4

x = 4