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Ksenya-84 [330]
3 years ago
12

Y=_x+4 x + 2y = 8 How many solutions dose this linear system have

Mathematics
1 answer:
jeyben [28]3 years ago
6 0

Answer:

X=-1, y=4

Step-by-step explanation:

y = x + 4 \\ x + 2y = 8 \\  =  =  =  =  =  =  =  =  =  =  =  = \\ y - x = 4 \\ x + 2y = 8

by using eliminating property

3y = 12 \\ y = \frac{12}{3}    = 4

by substitution

X=-1

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Two less than 3 times a number is the same as the number plus 10.
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4 years ago
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disa [49]

Answer: 289 units

Step-by-step explanation:

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Units to be ordered :

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(σT+L) = √(T + L)σ²

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5 0
4 years ago
Solve the quadratic equation by factoring. 9x^2-16=0
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Answer:

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Step-by-step explanation:

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