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Nesterboy [21]
2 years ago
7

Solve the system of linear equations by elimination -x+y=4;x+3y=4

Mathematics
1 answer:
mamaluj [8]2 years ago
3 0

Answer:

the solution is (-8, 4)

Step-by-step explanation:

Let's use the addition/subtraction method here to eliminate one variable:

-x+y=4

x+3y=4

Combining these two equations results in

4y = 8, so that y = 2.  Substituting y = 2 into the second equation, we get:

x + 3(2) = 4, or x = -2.

Then the solution is (-8, 4)

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