Resposta:
- 3
Explicação passo a passo:
(x − 1) − (x + 2)
x − 1 − x − 2
− 1 − 2
− 3
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Resposta:
- 3
Explicação passo a passo:
(x − 1) − (x + 2)
x − 1 − x − 2
− 1 − 2
− 3