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DrikaRock
@DrikaRock
October 2020
2
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efetue:
A- (+7x) + (-3x) - (-9x)
b- (-8x) + (+11x) + (-4x)
c- (-2y) + (- 3y) - (-6y)
d- (-9m)+(-3m) + (-3m)
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3478elc
Verified answer
A- (+7x) + (-3x) - (-9x) = 7x-3x+9x= 13x
b- (-8x) + (+11x) + (-4x)= -8x+11x-4x= - x
c- (-2y) + (- 3y) - (-6y)= -2y-3y+6y= y
d- (-9m)+(-3m) + (-3m)= -9m-3m-3m= - 15m
0 votes
Thanks 1
helviotedesco
Verified answer
A)
(7x) + (-3x) - (-9x) => 7x - 3x + 9x =
13x
B)
(-8x) + (+11x) + (-4x) => -8x + 11x - 4x =>
-x
C)
(-2y) + (-3y) - (-6y) => -2y -3y + 6y =>
y
D)
(-9m) + (-3m) + (-3m) => -9m - 3m - 3m =>
-15m
2 votes
Thanks 1
helviotedesco
Obrigado.
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Verified answer
A- (+7x) + (-3x) - (-9x) = 7x-3x+9x= 13x
b- (-8x) + (+11x) + (-4x)= -8x+11x-4x= - x
c- (-2y) + (- 3y) - (-6y)= -2y-3y+6y= y
d- (-9m)+(-3m) + (-3m)= -9m-3m-3m= - 15m
Verified answer
A)(7x) + (-3x) - (-9x) => 7x - 3x + 9x = 13x
B)
(-8x) + (+11x) + (-4x) => -8x + 11x - 4x => -x
C)
(-2y) + (-3y) - (-6y) => -2y -3y + 6y => y
D)
(-9m) + (-3m) + (-3m) => -9m - 3m - 3m => -15m