
Equação do Primeiro grau
Authored by Lorena Rodrigues
Mathematics
9th Grade
Used 46+ times

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8 questions
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1.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Qual o valor da incógnita x que torna a igualdade 8x - 3 = 5 verdadeira?
2.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Dois pacotes juntos pesam 22 kg . Quanto pesa cada um deles, se o maior tem 6 kg a mais que o menor?
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Para fazer um canteiro em sua chácara, Helena quer cercar uma região retangular usando exatamente, 114m e tela. Esse canteiro deve ter 7m de comprimento a mais que a largura. Quais dimensões deve ter esse canteiro?
21,5m e 28,5m
25m e 32m
22m e 29m
23m e 30m
4.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Determine o valor do coeficiente angular (a) e do coeficiente linear (b) da equação a seguir:
2x + 6 = - 3x + 1
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Determine o valor da raiz da equação a seguir:
10 – 5x = - 6x + 8
x = 2
x = 3
x = -2
x = -3
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Identifique entre as equações do quadrado aquela que representa o problema: Em uma barraca na praia, João comprou dois sucos de mesmo preço, pagou com uma cédula de R$ 50,00 e recebeu R$ 34,00 de troco.
2𝑥 − 34 = 50
34 + = 50
50 − 2𝑥 = 34
x + + 34 = -50
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Determine a raiz da equação:
5𝑥 + 18 = 33
x = 3
x = 5
x = -1
x = 1
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