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2 years ago

I need help to answer/ solve this

Mathematics

1 answer:

Neporo4naja [7]2 years ago

6 0

Answer:

${x,y}={6,-1}$

Step-by-step explanation:

Solve by Substitution :

// Solve equation [2] for the variable y

[2] y = -x + 5

// Plug this in for variable y in equation [1]

[1] x - 2•(-x +5) = 8

[1] 3x = 18

// Solve equation [1] for the variable x

[1] 3x = 18

[1] x = 6

// By now we know this much :

x = 6

y = -x+5

// Use the x value to solve for y

y = -(6)+5 = -1

Solution :

${x,y} = {6,-1}$

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Answer: the ordered pair is (-14,-6)

Step by step:

x – 2y = -2 (Eq. 1)

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Substitute that solution x in Eq. 2:

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Solve for y:

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