Question

Tìm x:

218 - (x +31) = x - 29

Giúp vs ạ@@

Mơn @@

Answer 1

Ta có : 218 - ( x + 81 ) = x - 29

\( \implies\) 218 - x - 81 = x - 29

\( \implies\) 137 - x = x - 29

\( \implies\) 2x = 166

\( \implies\) x = 83 

Answer 2

218 - (x +31)=x - 29

218 - x -31=x-29

218-x=x-29+31

218-x=x+2

x+2=218-x

2=218-x-x

2=218-Xx2

xX2=218-2

Xx2=216

x=216:2

x=108

Answer 3

218 - ( x + 31) = x - 29

<=> 218 - x - 31 = x - 29

<=> -x - x = -29 - 218 + 31

<=> -2x = -216

<=> x = - 108

Vậy x = - 108

Answer 4

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