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3 years ago

Solve each system by substitution. 1) y= 2x - 16 y= -2

Mathematics

1 answer:

DochEvi [55]3 years ago

7 0

Answer:

x = 7

Step-by-step explanation:

Solve equation [2] for the variable y

[2] y = - 2

Plug this in for variable y in equation [1]

[1] (-2) - 2x = -16

[1] - 2x = -14

Solve equation [1] for the variable x

[1] 2x = 14

[1] x = 7

Solution:
y = -2
x = 7

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Step-by-step explanation:

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step 1

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step 2

Find the distance QR

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substitute in the formula

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step 3

Find the distance RS

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substitute in the formula

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step 4

Find the distance PS

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substitute in the formula

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step 5

Find the perimeter

$P=PQ+QR+RS+PS$

substitute the values

$P=1+\sqrt{41}+5+\sqrt{17}$

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