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minus 2 ori x minus 200 egal 0​

Răspuns :

- 2 × X - 200 = 0

- 2 × X = 0 + 200

- 2 × X = 200

X = 200 : ( - 2 )

X = - 100

- 2x - 200 = 0

2x = -200

x = -200 : 2

x = -100