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3 years ago

{x = -4y - 19

Mathematics

2 answers:

o-na [289]3 years ago

8 0

Answer:

x = 9

y = -7

Step-by-step explanation:

x = -4y - 19

2x + 2y = 4

2(-4y - 19) + 2y = 4

-8y - 38 +2y =4

-6y = 4 + 38

-6y=42

y= -7

x = -4(-7) -19

x = 9

Harman [31]3 years ago

3 0

Answer:

x = 9 and y = -7

Step-by-step explanation:

given:

x = -4y - 19
2x + 2y = 4

using substitution method:

2(-4y - 19) + 2y = 4

-8y - 38 + 2y = 4

-6y = 42

y = -7

Solve for x:

x = -4(-7) - 19

x = 28 - 19

x = 9

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