20 + ( 4 - x ) = -7
4 - x = -7 - 20
4 - x = -27
x = 4 - ( -27 )
x = 31
:)
20 + ( 4 - x ) = -7
4 - x = -7 - 20
4 - x = -27
x = 4 - ( - 27 )
x = 31
Vậy x = 31
k mk nha !!>>
20+(4-x)=-7
20+4-x=-7
20+4+7=x
31=x (TM)
Vậy x=31
20+(4-x)=-7
4-x=-7-20
4-x=-7+(-20)
4-x=-27
x=4-(-27)
x=4+27
x=31
Vậy x=31
nhớ k mình nhé!
Dễ mà bạn.^-^
20+(4-x)=-7
4-x=20-(-7)
4-x=20+7
4-x=27
x=4-27
x=-23
20+(4-x)=-7
4-x=-7-20
4-x=-27
x=-27-4
x=-31
=> 4-x = -7 - 20 = -27
=> x = 4 - (-27) = 31
Vậy x = 31
Tk mk nha
20+(4-x)=-7
4-x=-7-20
4-x=-27
x=4-(-27)
x=4+27
x=31
sorry mk nhầm lẫn tí. hihi câu mk vừa trả lời ms đúng
=> 4-x = -7 - 20 = -27
=> x = 4 - (-27)
=> x = 31
Vậy x = 31
Tk mk nha
20+(4-x)=-7
=>4-x=20-(-7)
=>4-x=27
=>x=4-27
=>x=-23
Vậy x=-23
20+(4-x)=-7
=>4-x=-7-20
=>4-x=13
=>x=4-13
=>x=-9
Vậy x=-9