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Rafafre
@Rafafre
July 2022
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Exercícios de revisão
1) Resolva as equações abaixo:
b) 2X - 4 = 16
c) 3X + 1 = 31
d) 4X - 7 = 9
e) 5X - 3 = 22
f) X - 13 = 3
g) 7X + 8 = 29
h) 10X + 4 = 34
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pedro1806
A 2x=16+4
2x=20
x=20/2
x=10
b 3x+1=31
3x=31-1
3x=30
x=30/3
x=10
4x-7=9
4x=9+7
4x=16
x=16/4
x=4
5x-3=22
5x=22+3
5x=25
x=25/5
x=5
x-13=3
x=3+13
x=16
7x+8=29
7x=29-8
7x=21
x=21/7
x=3
10x+4=34
10x=34-4
10x=30
x=30/10
x=3
1 votes
Thanks 3
silvabarbosalucivan
Resposta:
Explicação passo a passo:
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2x=20
x=20/2
x=10
b 3x+1=31
3x=31-1
3x=30
x=30/3
x=10
4x-7=9
4x=9+7
4x=16
x=16/4
x=4
5x-3=22
5x=22+3
5x=25
x=25/5
x=5
x-13=3
x=3+13
x=16
7x+8=29
7x=29-8
7x=21
x=21/7
x=3
10x+4=34
10x=34-4
10x=30
x=30/10
x=3
Resposta:
Explicação passo a passo: