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SinistroForever2015
@SinistroForever2015
December 2019
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Qual é o valor da letra desconhecida?
AJUDAAA PFV
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samaragoncalves2
8°) 5X+5X=90°
10X=90°
X=
X=9
SÓ CONSEGUI FAZER ESSA
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Thanks 1
átomo1
1) 5x + 5x = 90
10x = 90
x = 90/10
x = 9
5 . 9 = 45 graus.
2) 9x - 2 + 9x +38 = 180
18x + 36 = 180
18x = 180 - 36
18x = 144
x = 144/18
x = 8
18 . 8 + 36 = 180
144 + 36 = 180
180 = 180 graus
3) 2x + 10 + 7x - 10 = 180
9x = 180
x = 180/9
x = 20
9 . 20 = 180
180 = 180 graus
1 votes
Thanks 1
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Lista de comentários
10X=90°
X=
X=9
SÓ CONSEGUI FAZER ESSA
10x = 90
x = 90/10
x = 9
5 . 9 = 45 graus.
2) 9x - 2 + 9x +38 = 180
18x + 36 = 180
18x = 180 - 36
18x = 144
x = 144/18
x = 8
18 . 8 + 36 = 180
144 + 36 = 180
180 = 180 graus
3) 2x + 10 + 7x - 10 = 180
9x = 180
x = 180/9
x = 20
9 . 20 = 180
180 = 180 graus