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ThiagoEstudioso
@ThiagoEstudioso
November 2019
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Resolva as equações abaixo me ajudem por favorzinho desde já agradeço
a) 2x-3=15
b) 4y=30-18
c) 5z-6=z+14
d) m+4=20
e) 2x+6=x+18
f) 5x-3=2x+9
g) 18x-43=65
h) 23x-16=14-17x
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gabeoliveira
A) 2x - 3 = 15
2x = 15 + 3
2x = 18
x = 18/2
x = 9
b) 4y=30-18
4y = 12
y = 12/4
y = 3
c) 5z-6=z+14
5z - z = 14 +6
4z = 20
z = 5
d) m+4=20
m = 20 - 4
m = 16
e) 2x+6=x+18
2x - x = 18 - 6
x = 12
f) 5x-3=2x+9
5x - 2x = 9 + 3
3x = 12
x = 4
g) 18x-43=65
18x = 65 + 43
18x = 108
x = 108/18
x = 6
h) 23x-16=14-17x
23x + 17x = 14 + 16
40 x = 30
x = 0,75 ou 3/4
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ThiagoEstudioso
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Lista de comentários
2x = 15 + 3
2x = 18
x = 18/2
x = 9
b) 4y=30-18
4y = 12
y = 12/4
y = 3
c) 5z-6=z+14
5z - z = 14 +6
4z = 20
z = 5
d) m+4=20
m = 20 - 4
m = 16
e) 2x+6=x+18
2x - x = 18 - 6
x = 12
f) 5x-3=2x+9
5x - 2x = 9 + 3
3x = 12
x = 4
g) 18x-43=65
18x = 65 + 43
18x = 108
x = 108/18
x = 6
h) 23x-16=14-17x
23x + 17x = 14 + 16
40 x = 30
x = 0,75 ou 3/4