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flaviojunior25
@flaviojunior25
July 2022
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o valor de x na equação 3x+15=x+27 e?
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BelG
A ideia é juntar todos os termos em um lado da equação, isolando o x. Respeitando a inversão de sinais nas trocas de lado.
3x + 15 = x + 27
3x + 15 - x = 27
3x - x = 27 - 15
2x = 12
x = 12/2
x = 6
1 votes
Thanks 0
cynthyaw
-27+15= x- 3x
-12=-2x(-1)
x=12/2
x=6
1 votes
Thanks 0
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3x + 15 = x + 27
3x + 15 - x = 27
3x - x = 27 - 15
2x = 12
x = 12/2
x = 6
-12=-2x(-1)
x=12/2
x=6