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Pedrohenrique201
@Pedrohenrique201
January 2020
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Resolva as equações :
a) 3/5-7=x+10
b) 4x-1=x/4+1/2
c) -x+2/2=8x+10/4
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TheMaverick
Verified answer
A)
- 7 = x + 10
- 7 - 10 = x
- 17 = x
= x
= x
= x
b) 4x - 1 =
+
4x -
=
+ 1
=
=
=
(16x + x) × 2 = 4 × 3
32x + 2x = 12
32x = 12
x =
x =
x =
c)
=
(- x + 2) × 4 = 2 × (8x + 10)
- 4x + 8 = 16x + 20
- 4x - 16x = 20 - 8
- 20x = 12
x = -
x = -
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Verified answer
A) - 7 = x + 10- 7 - 10 = x
- 17 = x
= x
= x
= x
b) 4x - 1 = +
4x - = + 1
=
=
=
(16x + x) × 2 = 4 × 3
32x + 2x = 12
32x = 12
x =
x =
x =
c) =
(- x + 2) × 4 = 2 × (8x + 10)
- 4x + 8 = 16x + 20
- 4x - 16x = 20 - 8
- 20x = 12
x = -
x = -