EQUAÇÃO PRIMEIRO GRAU
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Easy
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15 questions
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1.
FLASHCARD QUESTION
Front
O que é uma equação do primeiro grau?
Back
Uma equação do primeiro grau é uma equação que pode ser escrita na forma ax + b = 0, onde a e b são números reais e a ≠ 0.
2.
FLASHCARD QUESTION
Front
Como resolver a equação X + 3 = 8?
Back
Subtraia 3 de ambos os lados: X = 8 - 3, então X = 5.
3.
FLASHCARD QUESTION
Front
Qual é o valor de X na equação 7 + X = 15?
Back
Subtraia 7 de ambos os lados: X = 15 - 7, então X = 8.
4.
FLASHCARD QUESTION
Front
Como resolver a equação 2X = X + 15?
Back
Subtraia X de ambos os lados: 2X - X = 15, então X = 15.
5.
FLASHCARD QUESTION
Front
Qual é o valor de X na equação 12 + X = 0?
Back
Subtraia 12 de ambos os lados: X = 0 - 12, então X = -12.
6.
FLASHCARD QUESTION
Front
Como resolver a equação 0,8 + X = 1,5?
Back
Subtraia 0,8 de ambos os lados: X = 1,5 - 0,8, então X = 0,7.
7.
FLASHCARD QUESTION
Front
O que significa a letra 'X' em uma equação?
Back
A letra 'X' representa uma incógnita, ou seja, um valor desconhecido que estamos tentando encontrar.
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