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Verdich [7]
3 years ago
6

How do you do #1- 3x + y = 17 4x + y = 18 find for x and y

Mathematics
1 answer:
daser333 [38]3 years ago
6 0
1st multiply the top equation by -1 to get -3x - y = -17 then add the 2 equations together to get:

4x + y - 3x - y = 18 - 17
x = 1 (simplified down)

Now plug the 1 into either equation
4(1) + y = 18
4 + y = 18
y = 18 - 4 = 14

Your point is (1, 14)
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