3 years ago

3x+2y=4 and 2x-4y=8. need help with coodinates

Mathematics

1 answer:

Ksenya-84 [330]3 years ago

4 0

Answer:

The solution set would be (2, -1)

Step-by-step explanation:

To find the solution set, use the elimination method. You can do this my multiplying the whole first equation by 2 and then adding the two equations together.

6x + 4y = 8

2x - 4y = 8

----------------

8x = 16

x = 2

Now that we have the value of x, solve for y using either equation.

2x - 4y = 8

2(2) - 4y = 8

4 - 4y = 8

-4y = 4

y = -1

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