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PurpleUnicorn2
@PurpleUnicorn2
January 2020
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A) 3x-7=8x+2
b) -8x+10=-3x+1
c) 9x-20=4x+5
d) 10x-8=2x+8
e) -15x+20=20x+55
f) 3x-10=5
Me ajudem por favor, é pra amanhã de manhã. Desde já obrigada ❤
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caio0202
A) 3x-7=8x+2
3x - 8x = 2 + 7
-5x = 9
x = - 9/5
b) -8x+10=-3x+1
-8x + 3x = 1 - 10
-5x = -9
x = -9/-5
x = 9/5
c) 9x-20=4x+5
9x - 4x = 5 + 20
5x = 25
x = 25 /5
x = 5
d) 10x-8=2x+8
10x - 2x = 8 + 8
8x = 16
x = 16 / 8
x = 2
e) -15x+20=20x+55
-15x - 20x = 55 - 20
-35x = 35
x = -35 / 35
x = -1
f) 3x-10=5
3x = 5 + 10
3x = 15
x = 15/ 3
x = 5
2 votes
Thanks 2
PurpleUnicorn2
Muito obrigada, me salvou ❤
caio0202
de nada
LuKiTaS2017
.:Olá:.
║║║║║║║║║║║║║║║║
A)
3x-7=8x+2
.::
3x-8x=2+7
.::
-5x=9
.::
9
.::
x=-----
.::
-5
.::
.::x=-1,8
║║║║║║║║║║║║║║║║
B)
-8x+10=-3x+1
.::
-8x+3x=1-10
.::
-5x=-9 ×(-1)
.::
9
.::
x=------
.::
5
.::
.::x=1,8
║║║║║║║║║║║║║║║║
C)
9x-20=4x+5
.::
9X-4X=5+20
.::
5X=25
.::
25
.::
x=------
.::
5
.::
.::x=5
║║║║║║║║║║║║║║║║
D)
10x-8=2x+8
.::
10x-2x=8+8
.::
8x=16
.::
16
.::
x=------
.::
8
.::
.::x=2
║║║║║║║║║║║║║║║║
E)
-15x+20=20x+55
.::
-15X-20x=55-20
.::
-35x=35
.::
35
.::
x=-------
.::
-35
.::
.::x=-1
║║║║║║║║║║║║║║║║
F)
3x-10=5
.::
3x=5+10
.::
3x=15
.::
15
.::
x=------
.::
3
.::
.::x=5
-------------------------------------------------
Espero ter ajudado:.Bons estudos:.
=)=)
1 votes
Thanks 1
PurpleUnicorn2
Ajudou sim. Obrigada
LuKiTaS2017
De nada!!
LuKiTaS2017
Precisando!!
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Report "A) 3x-7=8x+2b) -8x+10=-3x+1c) 9x-20=4x+5d) 10x-8=2x+8e) -15x+20=20x+55f) 3x-10=5 Me ajudem por favor.... Pergunta de ideia de PurpleUnicorn2"
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Lista de comentários
3x - 8x = 2 + 7
-5x = 9
x = - 9/5
b) -8x+10=-3x+1
-8x + 3x = 1 - 10
-5x = -9
x = -9/-5
x = 9/5
c) 9x-20=4x+5
9x - 4x = 5 + 20
5x = 25
x = 25 /5
x = 5
d) 10x-8=2x+8
10x - 2x = 8 + 8
8x = 16
x = 16 / 8
x = 2
e) -15x+20=20x+55
-15x - 20x = 55 - 20
-35x = 35
x = -35 / 35
x = -1
f) 3x-10=5
3x = 5 + 10
3x = 15
x = 15/ 3
x = 5
║║║║║║║║║║║║║║║║
A)3x-7=8x+2
.::3x-8x=2+7
.::-5x=9
.:: 9
.::x=-----
.:: -5
.::
.::x=-1,8
║║║║║║║║║║║║║║║║
B)-8x+10=-3x+1
.::-8x+3x=1-10
.::-5x=-9 ×(-1)
.:: 9
.::x=------
.:: 5
.::
.::x=1,8
║║║║║║║║║║║║║║║║
C)9x-20=4x+5
.::9X-4X=5+20
.::5X=25
.:: 25
.::x=------
.:: 5
.::
.::x=5
║║║║║║║║║║║║║║║║
D)10x-8=2x+8
.::10x-2x=8+8
.::8x=16
.:: 16
.::x=------
.:: 8
.::
.::x=2
║║║║║║║║║║║║║║║║
E)-15x+20=20x+55
.::-15X-20x=55-20
.::-35x=35
.:: 35
.::x=-------
.:: -35
.::
.::x=-1
║║║║║║║║║║║║║║║║
F)3x-10=5
.::3x=5+10
.::3x=15
.:: 15
.::x=------
.:: 3
.::
.::x=5
-------------------------------------------------
Espero ter ajudado:.Bons estudos:.
=)=)