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Genrish500 [490]
3 years ago
14

Solve the system of equations by substitution

Mathematics
1 answer:
scoundrel [369]3 years ago
7 0

Answer:

(x, y) = (1, 3)

Step-by-step explanation:

given the 2 equations

x + y = 4 → (1)

y = 3x → (2)

Substitute y = 3x into (1)

x + 3x = 4

4x = 4 ( divide both sides by 4 )

x = 1

Substitute x = 1 into (2) for corresponding value of y

y = 3 × 1 = 3

solution is (1, 3 )


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The temperature during the day in Miami was 92 degrees fahrenheit. During the night, the temperature fell 4 degrees fahrenheit.
BigorU [14]
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4 0
3 years ago
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pav-90 [236]

Answer:

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3 years ago
Type your number answer in decimal form. do not round . ? millimeters = 9.2 cenimeters
adell [148]

Answer:

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Step-by-step explanation:

we know that

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3 0
3 years ago
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What is the value of x in 4x + 11 = 3x +1
o-na [289]

Answer:

x = -10

Step-by-step explanation:

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3 years ago
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