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vazorg [7]
3 years ago
8

To solve this system of equations using substitution, what could be substituted in place of y in the first equation?

Mathematics
1 answer:
Akimi4 [234]3 years ago
6 0
Looking at second equation.. you must put it in y=Mx+b form and so you must add 2x from both side leaving you with 7 +2x or in this case 2x+7
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Solve the following system by the comparison method.
agasfer [191]

Answer:

2p + q = 1

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q = 1 - 2p

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9p + 3(1 - 2p) + 3 = 0

9p + 3 - 6p + 3 = 0

3p + 6 =0

3p = -6

p = -2

q = 1 - 2p

q = 1 -2(-2)

q = 1 + 4

q = 5

(-2 , 5)

there for the answer would be

{(-2, 5)}

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Dafna1 [17]

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Softa [21]

Answer:

35 and 55

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x+(2×-15)=90

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4 0
3 years ago
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5 0
2 years ago
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aliina [53]

Answer:

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12/20+5/20=17/20, so Carla has finished washing 17/20 of her laundry.

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