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Illusion [34]
2 years ago
6

Solve the system of equations and choose the correct answer from the list of

Mathematics
1 answer:
Leya [2.2K]2 years ago
4 0

Answer:

x = -19/2      y = -33/2

Step-by-step explanation:

x - (3x + 12) = 7

x - 3x - 12 = 7

-2x - 12 = 7

-2x = 19

x = -19/2

x - y = 7

-19/2 - y = 7

-y = 33/2

y = -33/2

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Answer:

Your solution is (-10/7, 92/7)

Step-by-step explanation:

12x + y = -4

y = 2x + 16

To use substitution, we want to plug one variable's equation into the other equation.

We can see that y is already solved for us. Plug y into the first equation.

12x + y = -4

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Now that we know x, we will plug it into one of the other equations.

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y = 2(-10/7) + 16

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y = -20/7 + 16

Add.

y = -20/7 + 112/7

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Your solution is (-10/7, 92/7)

Hope this helps!

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